for the first time, 第一次, tens of thousands of, 数以万计,无数, on average, 平均, paid for, 付款, died, 死(过去时), original, 原始的, trains, 训练,火车(复数), marathons, 马拉松(复数), yet, 还未, elderly, 上了年纪的, incredible, 难以置信的, performer, 表演者, free, 免费的, neighbourhood, 附近, shy, 害羞的, memory, 记忆, exactly, 精确地, sold, 出售(过去时), born, 出生, operation, 操作,手术, incredibly, 令人难以置信的, complain, 抱怨, seem, 似乎, weak, 弱的, wheelchair, 轮椅

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