knock off是及物还是不及物有knock sth off sp

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knock off是及物还是不及物有knock sth off sp
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knock off是及物还是不及物有knock sth off sp
knock off是及物还是不及物
有knock sth off sp

knock off是及物还是不及物有knock sth off sp
没有
knock off 是不能拆开的
例:
He knocked off ten percent from the price.
他杀价10%
He sat down and knocked off an article for the local paper in an hour.
他坐下来在一小时内很快就给当地报纸写了一篇文章.