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4.keep back保留;阻止;隐瞒;拒留

  She was in deep sorrow。but she kept back her tears.

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3.keep up with跟上

  She can’t keep up with others.

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2.keep up坚持

  Keep up your courage and you will succeed.

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1.keep on doing sth.继续或反复做某事

  Marx kept on studying English and using it when he lived in London.

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4.have difficulty in/find difficulty in/have trouble in 做……有困难

We have/find difficulty in writing the composition.

We have trouble in writing the composition.

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3.have(deep)effects on对……有(深远)影响

The book has great effects on his life.

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2.have words with争吵

They’ve had words with her about money.

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1.have a word with sb.和某人说句话

Could you spare a few minutes? I want to have a word with

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18.go down下降,降沉,下沉

  The moon has gone down.

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17.go up上升,上涨

  The goods have gone up in quality.

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同步练习册答案