下決心
我已經決定了。
I've decided.=I've made up my mind.=I've come to a decision.

一切都看你的了。
It's up to you. =It depends on you.
It's completely up to you. =It's all up to you.

你決定吧!
You decide.

這是關鍵性的一點。
This is the important point.=This is the main point.=This is crucial.

這是我個人的問題。
This is my personal problem.=This is my private affair.

這是生死攸關的大事。
It's a matter of life and death. =It's extremely important.

是去是留，随你。
You're free to go or stay.=You're free to leave anytime.=I'm not keeping you here.

已經無可挽回了。
There's no turning back.=We can't turn back now.

走一步看一步吧!
Let's play it by ear. =Let's leave everything to chance.=Let's just see what happens.

我确信我能做好。
I'm sure I can do it. =I certainly can do it.=I believe I can do it.

我仍然無法決定我該做什麼。
I'm still unable to decide what to do.=I still can't decide what to do. =I'm still unsure.

我跟着她。
I'll follow her.=I'll go after her.

我們擰成一股繩地去幹。
Let's all get together and act as one.=Let's work together as a team.

反正，也得幹。
I have to do it anyhow. =I must do it anyway.

機不可失，時不再來。
It's now or never. =No time like the present. =Seize the day. =Carpe diem.
越早越好。
The sooner, the better.

碰碰運氣看。
I'll take a chance.=I'll take a gamble.=I'll go for it. =I'll give it a try.

再拿出點勇氣來。
Have more guts!

我們總得想辦法完成。
Let's finish it somehow. =Let's try our best to finish it. =Let's get it over with. 

值得一試。
It's worth a try.

我們必須同心同德。
We must function as one mind and one body.=We have to work together.=We must be a team.=We have to cooperate with each other.

你等着瞧吧。
You just wait.

豁出去了。
It's all or nothing.