chat away: 闲谈
You can happily chat away on that wired mic all you like.
你可以轻松地用这副有线麦克风任意聊天。
No sooner had our american visitors got off the bus than we began to chat away as old friends.
美国客人们刚一下车，我们就像老朋友似地谈起来了。

keel over: 使…晕倒
Do you wanna see me keel over?
你想看见我厥过去吗？
Oh. Too bad she didn't keel over and die.
噢，真可惜她没倒下就死掉.

pass away: 去世,消磨掉
Excuse me. I, I'm so sorry, but my son just passed away.
对不起，我很抱歉,不过我的儿子刚刚死了.
Instead, we allow the defilements to manifest and pass away.
反之，我让内心的不净烦恼浮现然后消逝。