do you know why he is leaving?his plane took off at 11:30.为什么用 took off
问题描述：
do you know why he is leaving?his plane took off at 11:30.为什么用 took off
答
took off 是take off 的过去式.
意思是：飞机起飞
翻译：
你知道为什么他现在离开吗?他的飞机在11点半就走了.
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