go off for 用法

go off
离开
I'd better have waited till the rain went off.
我当时要是等雨停再走就好了。
私奔
She went off with the gardener's son.
她跟园艺工人的儿子私奔了。
睡着
He has gone off by the fire.
他靠着火炉睡着了。
消失
The headache went off quite suddenly.
头疼突然消失了。
The effects of the sedative have gone off.
止痛药的药效已过。
开始变坏, 变质
Fish soon goes off in this hot weather.
在这么热的天气里鱼很快会变质。
变差
The lecturer used to do well, but he seems to have gone off now.
这个演讲者以前讲得很好, 但如今似乎变差了。

go for
decide on; choose
对…作出决定；选择
I wished that we had gone for plan B.
我们要是选择第二个计划就好了。
■tend to find (a particular type of person) attractive
对（某种类型的人）有好感
Dionne went for the outlaw type.
迪欧妮喜欢那种有叛逆性的人。
attempt to gain or attain
试图得到（或达到）
he went for a job as a delivery driver.
他努力想得到一份送货司机的工作。
■(go for it)strive to the utmost to gain or achieve something (frequently said as an exhortation)
尽最大努力得到（或实现）〔常用于劝告语中〕
sounds like a good idea—go for it!.
听起来是个好主意，去实现它吧！。
launch oneself at (someone); attack
扑向；袭击
she went for him with clawed hands.
她伸出利爪一般的手向他扑过去。
end up having a specified value or effect
以（某种价值，结果）告终
my good intentions went for nothing.
我的好心好意最后变成一场空。
apply to; have relevance for
适用于；与…有关
the same goes for money-grabbing lawyers.
对那些捞钱的律师来说也一样。

出发去做某事
go off for sth.

出发去某地

go off for vacation 出发去度假 for后面加名词（地点）
go off for doing 动身做某事