他們雙手托著下巴，全神貫注地盯著窗外或天花板。
With their chins on their handsWith their chins on their hands ，they occupy themselves by staring out of the window or up the ceiling.
【考點】固定搭配/句型．
【答案】With their chins on their hands
【解答】
【點評】
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發(fā)布：2024/6/27 10:35:59組卷：0引用：1難度：0.8
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