P-24:put one's best foot forward/foremost 全力以赴
A:I failed the college entrance examination.
A:我没有考上大学。
B:I'm sorry to hear that.
B:真遗憾。
A:I can't face the music now.
A:我真不敢面对这个事实。
B:Cheer up. You've put your best foot forward.
B:振作点儿,你已经尽全力了。