题目内容
5. 他描述了它们在什么地点着陆以及它们是如何横穿美国的。
He described they and told how they were moving across the United States.
5. where;had landed
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题目内容
5. 他描述了它们在什么地点着陆以及它们是如何横穿美国的。
He described they and told how they were moving across the United States.
5. where;had landed