children must be taught to be careful of traffic.
children must be taught to be careful of traffic.
句子中的of能替换成about吗?为什么?
句子中的of能替换成about吗?为什么?
英语人气：789 ℃时间：2020-05-25 16:36:26
优质解答
be careful of 固定用法,小心,注意.children must be taught to be careful of traffic.整句的意思是必须教育孩子要当心车辆.
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