隻要上邊認可你,就算累s也願意. 倘若白白幫懶漢,這種情況需改變

If you are working hard for nothing, you better stop doing it.

If possible, make a clear line of responsibilities between you and the lazy guy.
You deliver yours, the lazy guy deliver his.
Yes, you can help him, but your work need to be credited to you.
米國公司雜草多, 第一件事當自強.
I will tell my manager on 1 on 1 if manager didn't know the details.

Thanks!