他几乎不做多余的手势，我们的对话过程中他的手优雅地叠放在桌上。

He wastes few gestures; as we speak, his hands remain elegantly folded on his desk.

youdao

那么我们需要垒叠多高的沙包防洪呢？

So how high would we have to pile the sandbags?

youdao

二叠纪大灭绝事件比其他大灭绝事件受到的关注要少得多，因为那时灭绝的大多是我们不熟悉的物种。

The Permian event has attracted much less attention than other mass extinctions because mostly unfamiliar species perished at that time.

youdao