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          "text": "请问，车站在哪里？",
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          "text": "怎么去公园？",
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      "mode": "listen"
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          "text": "How do I get to the park?",
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          "text": "怎么去公园？",
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          "text": "怎么去公园？",
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          "text": "这个多少钱？",
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      "review_status": "Human pronunciation review pending",
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      "mode": "listen"
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          "text": "这个多少钱？",
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          "start": 1.905,
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          "text": "How much is this?",
          "voice": "Microsoft Zira"
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          "text": "这个多少钱？",
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          "text": "How much is this?",
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          "start": 5.346,
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          "text": "这个多少钱？",
          "voice": "Microsoft Huihui"
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          "text": "可以用信用卡吗？",
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      ],
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      "review_status": "Human pronunciation review pending",
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      "mode": "listen"
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          "start": 2.353,
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          "text": "Can I use a credit card?",
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    {
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          "text": "可以用信用卡吗？",
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          "start": 5.853,
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          "text": "可以用信用卡吗？",
          "voice": "Microsoft Huihui"
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    {
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          "text": "Can I use a credit card?",
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        {
          "start": 5.743,
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          "text": "可以用信用卡吗？",
          "voice": "Microsoft Huihui"
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      ],
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      "review_status": "Human pronunciation review pending",
      "item_id": "P21",
      "mode": "recall"
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    {
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          "text": "你做什么工作？",
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      "review_status": "Human pronunciation review pending",
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      "mode": "listen"
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    {
      "id": "P22-meaning",
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          "text": "你做什么工作？",
          "voice": "Microsoft Huihui"
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        {
          "start": 2.065,
          "end": 3.385,
          "text": "What work do you do?",
          "voice": "Microsoft Zira"
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    {
      "id": "P22-repeat",
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          "text": "你做什么工作？",
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          "start": 5.565,
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          "text": "你做什么工作？",
          "voice": "Microsoft Huihui"
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      ],
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      "mode": "repeat"
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    {
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          "text": "What work do you do?",
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        {
          "start": 5.47,
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          "text": "你做什么工作？",
          "voice": "Microsoft Huihui"
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      ],
      "synthetic": true,
      "review_status": "Human pronunciation review pending",
      "item_id": "P22",
      "mode": "recall"
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    {
      "id": "P23-listen",
      "file": "mp3/P23-listen.mp3",
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          "text": "我听不懂。",
          "voice": "Microsoft Huihui"
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      "review_status": "Human pronunciation review pending",
      "item_id": "P23",
      "mode": "listen"
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    {
      "id": "P23-meaning",
      "file": "mp3/P23-meaning.mp3",
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          "text": "我听不懂。",
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          "text": "I don't understand what I hear.",
          "voice": "Microsoft Zira"
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      "review_status": "Human pronunciation review pending",
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    {
      "id": "P23-repeat",
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          "text": "我听不懂。",
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          "end": 6.067,
          "text": "我听不懂。",
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      "review_status": "Human pronunciation review pending",
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    {
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          "text": "我听不懂。",
          "voice": "Microsoft Huihui"
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    {
      "id": "P24-listen",
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          "text": "请再说一遍。",
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      ],
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      "review_status": "Human pronunciation review pending",
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          "text": "Please say it again.",
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      "review_status": "Human pronunciation review pending",
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    {
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          "text": "请再说一遍。",
          "voice": "Microsoft Huihui"
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    {
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    {
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      "review_status": "Human pronunciation review pending",
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          "end": 4.05,
          "text": "Please speak a little more slowly.",
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    {
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          "start": 5.658,
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          "text": "请说慢一点儿。",
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          "text": "Please speak a little more slowly.",
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          "start": 6.041,
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          "text": "请说慢一点儿。",
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      "mode": "recall"
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