下面的习语和表达都和动词do有关，为了帮助理解这些常见的有关do的短语和表达，每个均有定义和例句。
a double take
Definition: look twice at someone or something because you are surprised
定义：因惊讶而再看一眼
She did a double take when he walked into the room.
他走进房间时，她惊讶地又看了他一眼。
Did you see that man do a double take as he looked at the price?
你有没有看到，那个男人又惊讶地看了一眼价格?
a number on someone
Definition: trick someone, cheat someone, hurt someone very badly
定义：捉弄、欺骗某人，深深地伤害某人
I'm afraid she did a number on him when she broke up.
我担心她提出分手对他伤害很深。
That guy did a number on John to the tune of $500!
那个家伙骗了约翰500美元!
an about face
Definition: turn around, return to where someone came from
定义：转身，转向来的地方
I'd like you to do an about face and go clean your room!
我想你还是回去打扫下房间!
As soon as I got to work I realized I'd have to do an about face because I'd left my briefcase at home.
我一到上班的地方就想起来我得回去一趟，因为我把公文包忘在家了。
away with something
Definition: prohibit something, make something not available
定义：禁止某事，使其无效。
They tried to do away with coffee in some cultures to little success.
他们尝试在一些地方禁止咖啡，效果却不如人意。
Anytime they do away with something people want it even more.
任何时候，他们越是禁止，人们反而越是贪婪。
justice to something
Definition: do successfully and with honor, complete in a befitting manner
定义：成功完成，适当处理
I think that painting doesn't do justice to him.
我觉得那幅画不适合他。
Alice really did justice to the presentation.
爱丽丝的陈述做得很棒。
one's duty
Definition: complete a responsibility, do something that is expected of you
定义：尽职尽责，完成别人对你的期望。
Remember to do your duty by honoring your parents.
记住，孝敬父母是你的.职责。
I'll do my duty but nothing more.
我只会做我职责范围之内的事。
one's part
Definition: do something that is required of you, join in doing something that requires many people
定义：完成被要求做的事，加入需要多人完成的某事。
He feels that volunteering is doing his part.
他觉得志愿活动是他的责任。
Do you part and get along and you'll have no problems here.
做好你的事，保持下去，就没问题了。
or die
Definition: complete a task or utterly fail
定义：非做不可，背水一战。
It's do or die time now. We're getting married!
现在非做不可了，我们结婚了!
Well John, it's do or die. Let's go!
好吧，约翰，背水一战的时候到了，上吧!
someone good
Definition: be beneficial for someone
定义：对某人有好处
I think taking the week off will do you good.
我觉得休息一周对你有好处。
She told me a massage would do me good.
她告诉我做个按摩对我有好处。
something over
Definition: repeat an action often because of a poor start
定义：由于不好的开头而重复某个动作
Let's do that over! I wasn't concentrated enough!
再做一次!我还不够专注!