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最佳答案:thirty选我吧
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最佳答案:half past one
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最佳答案:two thirtyhalf past two
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最佳答案:at half past seven o'clock
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最佳答案:eight thirtyhalf to ninethirty past eight
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最佳答案:half past eight to half past ten
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最佳答案:I must stay up until 10:30 PM.
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最佳答案:half past twelvethirty to thirteen
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最佳答案:sin30°:sine thirty (sine发音等同sign)根下3:root three (不嫌麻烦的话,the root of three)
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最佳答案:eight twenty onefive thither fivetwo fourty fiveten Ofivefour thirty