all that 和 what 辨析？

That's all that they have done.

That's what they have done.

请教老师，以上2句区别在哪呢？麻烦老师多讲讲，谢谢！

what=the thing which . 所以，

That's all that they have done.

That's the thing that they have done.

区别就是all 和 the thing 的区别。这不是很明显的吗？其实你自己都应该能够做出这样的分析的。

曹荣禄 -

擅长：动词用法,句法问题 | 采纳率 82% | 回答于 2021-01-31 09:34

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