1. I put my trust in you.
我信任你。
還能這樣說：
I trust you.
I have faith in you.
諺語：
Put your shoulder to the wheel.
鼎力相助。
2. I rather doubt that.
我非常懷疑。
還能這樣說：
It sounds fishy to me.
I am doubtful about that.
應用解析：
beyond doubt 毫無疑問；
cast doubt on 對……產生懷疑；
lay sb.'s doubts 消除某人的疑慮
3. What a pity!
真遺憾！
還能這樣說：
What a shame!
Too bad!
應用解析：
feel pity for sb. 同情某人；
have pity on sb. 可憐某人；
in pity (of) 憐憫……；同情；
out of pity 出于憐憫
4.I know that's what I must do.
我知道那是我必須做的。
還能這樣說：
I know it is my obligation.
I should shirk my duty to do that.
應用解析：
msut作情態動詞講，表示必要、命令或強制（必須，得）；表示肯定的推測（一定是，諒必，八成）；

表示不可避免性（必然要，必定會）；表示主張（一定要，堅持要）。
5. No smoking!
請勿吸煙！
還能這樣說：
You are not permitted to smoke here.
Smoking is not permitted here.
諺語：
There is no smoke without fire.
無火不起煙；無風不起浪。
6. You had better hurry up.
你最好快點。
還能這樣說：
You must be fast.
You'd better be as soon as possible.
應用解析：
no hurry 不忙，不必著急，有充裕的時間；
split of a hurry 極為匆忙；
without hurry or bustle 不慌不忙地；
hurry on (with) 趕緊辦理；急急忙忙地做
7. I regret having done that.
我后悔那樣做。
還能這樣說：
I shouldn't have done this.
I felt sorry for what I have done.
諺語：
A moment's error can bring a lifelong regret.
一失足成千古恨。
8. That is boring!
真討厭！
還能這樣說：
Darn it.
It is disgusting.
應用解析：
表示厭惡的同義詞還有：dull，tedious，tiresome，wearisome。
例如：It's tiresome to keep doing this.
一直這樣做真煩人。