now and then,now and again,once in a while,from time to time

now and then,now and again,once in a while,from time to time区别哦?

dq131 1年前已收到1个回答举报

勤奋的猪猪幼苗

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The differences are very subtle and insignificant and negligible as a result. Don’t befuddle yourself.

1年前

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