1.muck about 闲荡

Give the book to Jim, don't muck him about!
把书给吉姆，别把他惹恼了。

Give me a straight answer, don't muck me about!
给我一个干脆的回答，不要“耍弄”我！

Don't muck about with my violin, I've just got it fixed.
别再乱动我的提琴，我刚把它修好。

2.in charge 负责，主管；在……看管下

There was no cohesion and there was no one person in charge.
没有任何凝聚力，也没有任何一个人来主管。

Responsibilities: Assist the Mayor in charge of informatization.
分管工作：协助市长负责信息化工作。

3.get it over with 赶快把事情做妥当；做完

Come on, let's get it over with.
来吧，让我们赶快把事情做完算了。

You might as well get it over with if you can.
如果能做得到，你最好赶快干完它。

What is taking you so long, Come on, let's get it over with!
你是在摸什么摸这么久快点，我们早做早完成！