Many real thing

He hated welding and shunned it. He felt bronze casts were too many steps removed from the real thing.

他厌恶焊接法并尽量避免使用，并认为铜铸法步骤太多抹杀了真实性。

But one thing at a time. I wanted to point out to you that very often functions that you see in real life satisfy many nice relations between the partial derivatives.

但是有一件事情，我必须指出来，在现实中，很多函数的偏导数之间，存在着很好的关系。

Shanzhai has undoubtedly broadened the availability of modern technology to many in Asia who previously might not have been able to afford "the real thing."

毫无置疑，山寨使得许多亚洲人民使用现代科技产品变得可能，他们是负担不起正版的产品的。