bone up on: to study quickly before the information is needed.
补:sth is getting rusty. 某事生疏了。
It's time to polish it up. 是时候把它捡起来了。
Wake up on the wrong side of the bed: feel annoyed, to be in a bad mood.
Tick off at: angry at
Clear the air: make bad feelings go away; settle an issue that is causing tension between people
Come clean: talk openly, admit sth
Inside information: private information
Pump sb for information:get secret information from sb
Stoop so low: behavior poorly or in an unethical or undignified way
Pin sth on sb: shift the blame to sb ＝blame sth on sb.
补:pin hope on sb 把希望寄托在某人身上
Eye-opener:an experience or activity that makes one realize what is really going on
补:a shocker 一件令人震惊的事;an avoider 逃避者，拖延的人; a big spender 一个爱花钱的人
On the same wavelength: in agreement, able to understand one another, compatible.＝Twining
Off to: going to, leave for, head for
Get to:逐渐变成某种状态。get to know 认识某人（中文翻译不出来）
Tourist trap: a place that attracts many tourists and charge them high prices.
补:touristy 游客的，商业化严重的
Change one's tune: start thinking differently about sth; change one's opinion.
Ready to drop: very tired, exhausted.
Jet lag: tiredness caused by the time difference when traveling.
Stick around: stay somewhere
Work wonders: help, be effective at making sth better.＝Work like a charm
Get a second wind: get new energy after feeling tired, suddenly feel energized.
Feel like doing:＝want to do
A couch potato: a lazy person, about who just wants to stay at home and watch TV or videos.
Once-in-a-lifetime: rare, unlikely to occur again
Grab a bite: get sth quick to eat.
Let's go find her: