我快累死了!
I'm exhausted.=I'm too tired to stand up.
A: Oh,my God,I'm exhausted.
B: It'll soon be over,this is the last one.

悠着点儿干
slow down =take it easy
A: Slow down!Don't work yourself to death.
B: You're quite right.Health is the most important.

我真的不能加班。
I really can't (afford to) work overtime.
A: Excuse me,Mr.Wang.I really can't work overtime.
Because my father has been ill recently,I must take care of him.
B: I'm sorry to hear that.Take good care of your father then.

不用加班就好了。
I wish I didn't have to work overtime.
A: I wish I didn't have to work overtime.
B: Can't you refuse to do so?
A: No,I can't.The task is urgent.

我另外找人替你。
I'll find another one to replace you.
A: Miss Liu,I hope you can come to work this Saturday.
B: Why? Did I make any mistake?
A: No,it's not you.Just some extra work.
B: Then I can only say sorry.I already have plans.
A: All right.I'll find another one to replace you.

我已经加了20个小时的班了。
I've logged in 20 hours of overtime!
A: I'm too tired now.I've logged in 20 hours of overtime!
B: Wow!Why so much? I thought they were getting you an assistant.
A: They were supposed to,but so far nobody's turned up,
and I'm left on my own to do the work.
B: You need to rest.Why don't you ask for some time off?

你能受得了吗？
Can you handle that?= Can your health afford that?
A: Hi, King,haven't seen you for days.What have you been doing?
B: Nothing important.I've been working overtime lately.That's all.
A: How many hours do you work each day now?
B: 15 hours or so.
A: That's tough indeed!Can you handle that?

由于失误不得不加班
have to work late for mistake
A: Miss Yang,your report is a total mess.The statistics are all wrong!
Why can't you carefully check them after finishing the report?
B: I should have.I'm sorry,Mr.Blake.
A: I'm afraid you'll have to work late this evening for your mistake.It has to be done today.