1. No good 很糟，很次

This computer is no good. Every time I use it, the screen blacks out.
这台电脑很糟，每次用的时候都黑屏。

2. No hard feelings 请别见怪，别伤和气

I didn't mean bad when I said that. No hard feelings, please!
当我说那些话的时候我没有恶意。千万别见怪。

疯狂联想：当你不小心得罪了人，赶快说这句话，以缓和气氛。