set up
这个片语有三种意思：建立、准备、陷害。意思相差甚远，故在文章中看到却不确定意思时，记得要仔细观察上下文，才能对应出最正确的意思喔。
1. 建立、创立 (制度、习惯、方法等)
My mom set up a rule that I must finish my homework before playing video games.
妈妈规定我要先写完作业才能玩电动。
2. 设定、准备
I need to go to classroom early in order to set up the projector before the presentation.
我得早点到教室才能在报告前把投影机准备好。
3. 陷害、设陷阱
My friends set me up on a blind date.
我朋友陷害我，安排我去相亲。
set back 使延迟、倒退
字面的意思是放 (set) 回去 (back)，原本要开始却被「放回去」，意思就延迟、倒退的意思。
The opening of the new restaurant has been set back by a few weeks.
这家新餐厅将延后几个星期开张。
set in 来到
放 (set) 进来 (in) 就是「来到」的意思。
Spring has set in very early this year.
今年春天来得很早。
set to
1. 开始、动手
The government is set to legislate against cigarette advertising.
政府准备制定新法打击香烟广告。
2. 开始殴打或争吵
Urged on by their friends, the two boys set to and were soon fighting violently.
这两个男孩在朋友们的怂恿下争吵, 不久就互相狠狠地打了起来。
set on
1. 决定
My sister is set on becoming an doctor, no matter how much effort she has to put in.
我妹妹下定决心，不论多困难都要成为医生。
2. 攻击
He was passing by the front door when suddenly a dog set on him.
他经过前门的时候，有只狗突然向他袭击。
set down 写下、记下
Why don’t you set your ideas down on paper?
你可以将想法写在纸上！
set against 使某人和某人竞争、对抗
against 本身就是对抗的意思，加了一个动词 set 就产生了动作，使某人和某人竞争、对抗。
He always sets a friend against another.
他总是挑拨朋友们互相反目成仇。
set aside
这个片语其实用想像的就可以清楚地记下它所包含的三个意思：aside 是旁边的意思，而把一个东西摆在旁边就为「储存、保留」；把人摆在旁边，就成了「不理会」；最后是，把东西摆在一旁置之不理，就为「驳回、撤销」的意思。
1. 储存、保留
Each week, Melody tries to set aside a few dollars from her salary in order to get a ticket to the concert of her favorite band.
Melody 每周都竭尽所能地储蓄，为的便是去她最爱乐团的演唱会。
2. 不顾、不理会
He set his little brother aside, trying to focus on his work.
他不理他弟弟，继续专注工作。
3. 驳回、撤销
The Appeal Court set aside the prisoner’s sentence.
上诉法院撤销了对刑事被告的判决。
set out
out 是「外面」，而你要出发、动身，是不是势必要出去外面呢？用这种方式思考就很容易记住了。那这个片语的另一个意思「展开计画」又要怎么解释呢？当你要展开一项新计画或任务时，就是要脱离你现在的动作，并开始展开新的计划。
1. 出发、动身
They have set out for a journey around the world right after graduation.
他们在毕业典礼后马上就出发去环游世界了。
2. 展开计画
Knowing how much my boyfriend loves surprises, I set out to visit his place without telling him.
我男朋友热爱惊喜，因此我决定出其不意地去他家。
set about 着手作某事
Let’s set about our proposal, we have wasted enough time.
我们来着手进行提案报告吧，我们已经浪费很多时间了。
