问题描述:
It's dark,quiet and quite cold here at night.We must ___ the door and window ___.夜里这儿漆黑安静
,而且非常寒冷,我们必须关紧门窗.
,而且非常寒冷,我们必须关紧门窗.
问题解答:
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问题描述:
问题解答:
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