Cos two wrongs, don't make a right.

因为两个错误，并不能变成正确的。

youdao

So what you can do is just to try your best to make use of them. You will have no risk., cos your cost is near zero.

所以我把它们交给你的时候，你们唯一要做的就是：想尽一切办法运用它们，你们没有任何风险，因为你的成本接近于零。

youdao

Dr. SKRAPEC SYNC: Right now if there is a criminal like a serial killer or bank robber, they are able to print in the code, 'cos each face you make has a particular code, a number for the eyebrows and a number for the nostril.

BBC