We can set off and create something that offers tangible proof of it.

我们可以自己创造出实实在在的证明。

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Why do we set a horizontal damp-proof course in a wall?

墙体中为什么设置水平防潮层？

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Seller provides Full Set of Proof of Product (POP).

卖方提供全套的供货证明。

youdao

Seller provides Full Set of Proof of Product (POP).

卖方提供全套的供货证明。

youdao