核心问题
请说明 clear of 与 clear off 的区别。
词典解答
clear...of 表示“从……中清除”：
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We must clear the area of enemy soldiers as soon as possible. (LDPV) 我们必须尽快清除这个地区的敌军。
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I wish I could clear my mind of doubt. (ALD) 要是我能解除心中的疑虑就好了。
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The signalman was cleared of all responsibility for the railway accident. (ODCIE) 信号员被宣告对那起铁路事故不负任何责任。
cleft sentence
clear（...）off 表示“跑开”“清理”“消失”：
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When the man saw the policeman, he cleared off as fast as his legs could carry him. (OD-CIE) 那家伙一看见警察，马上就拔腿拼命逃走了。
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Please clear your papers off so that I can serve dinner. (LDPV) 请把你的文件拿走,我好摆饭菜。
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In the afternoon, the mist cleared off and the rest of the day was fine. (LDPV) 下午时分雾散了,那天其余的时间都是晴天。