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catch up 英 [kætʃ ʌp] 　美 [kætʃ ʌp]

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catch up

phrase. 赶上；把…缠住　

I have to catch up on my sleep.　我必须补上我的睡眠。

How, they ask, can India ever catch up?　他们不禁要问：印度怎能赶上中国？

1. I have to catch up on my sleep.

我必须补上我的睡眠。
2. How, they ask, can India ever catch up?

他们不禁要问：印度怎能赶上中国？
3. We must exert ourselves to catch up with them, or it would be too late.

我们要急起直追，否则就太晚了。