9点15分，6点30分，6点10分和8点40的英语该怎莫写啊？

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顺判芦读法 1.nine fifteen 2.six thirty 3.six ten 4.eight forty
逆读笑春法 1.nine past fifteen 或碰冲耐 a quarter past nine 2.thirty past six 或 half past six 3.ten past six
4.twenty to nine

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a quarter past nine
half past six =six thirty
ten past six
eight forty

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