题目内容

Children today don’t have much idea what jobs their parents do.

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早期飞机起落装置多数是前三点式的。

Comma can be on both sides of words that interrupt the flow of thought in a sentence.

框架扁梁与框架梁的箍筋加密区范围要求是不同的

形状、位置属于听觉信号