A: You're complaining about your office again.
B: Yes. My boss is really unbearable.
A: If I were you, I would sooner quit the job than keep complaining.
B: Yes, it's about time to think it over seriously. But the pay is really good...

A: 你又在抱怨你的公司了。
B: 是啊。我的主管真令人无法忍受。
A: 假如我是你的话，与其不停抱怨倒不如辞职算了。
B: 是啊，是该慎重考虑的时候了。不过待遇实在不错...

重点解说：
★ complain「抱怨，发牢骚」
★ unbearable「无法忍受的」
★ If I were you「假如我是你的话」这是与现在事实相反的假设，此外还有一种很有趣的说法"If I were in your shoes"「假如我处于你的立场的话」。
★ I would sooner ~ than ...「与其...不如~」此语用于表示前后两件事比较起来，自己宁愿选择前者。I would sooner亦可说成I would rather，如I would rather [sooner] read than watch television.「与其看电视，我宁愿阅读。」
★ quit one's job「辞职」
★ it's about [high] time ~意为「是~ 的时候了」，例如It is (high) time (that) we started.「是我们该出发的时候了。」

A: You're complaining about your office again.
B: Yes. My boss is really unbearable.
A: If I were you, I would sooner quit the job than keep complaining.
B: Yes, it's about time to think it over seriously. But the pay is really good...

A: 你又在抱怨你的公司了。
B: 是啊。我的主管真令人无法忍受。
A: 假如我是你的话，与其不停抱怨倒不如辞职算了。
B: 是啊，是该慎重考虑的时候了。不过待遇实在不错...

You are complaining about your office again.
Yes, my boss is really unbearable.
If I were you, I would sooner quit the job than keep complaining.
Yes, it's about time to think it over seriously. But the pay is really good.

A: You're complaining about your office again.
B: Yes. My boss is really unbearable.
A: If I were you, I would sooner quit the job than keep complaining.
B: Yes, it's about time to think it over seriously. But the pay is really good...

斑竹好用心啊，贴子编得这么精心，不过好象一些不太清晰！呵呵，不要骂我老眼晕花噢

You are complaining about your office again.
Yes, my boss is really unbearable.
If i were you, i would sooner quit the job than keep complaining.
Yes, it's time to think it over seriously. But the pay is really good.

If i were in your shoes, i would eat my words.

you are complaing your office again.
yes,  my boss is really unbearble.
if i were you, i will sonner quit the job than keep the compaining.
yes, it is about time to think it over seriously, but the pay is really good.

emphasis:
if i were you = if i were in your shoes
would rather .... than  = would sooner...than
quit one's job
it is about/high time that ...