pre-loved
二手货  

例句：
Tom runs a pre-loved clothing shop. The dresses he sells are all designer clothes, but they are much cheaper than they would be if they were new.
汤姆经营一家二手服装店，卖的都是名牌服装，但价格却远远低于新货价格。
 

tighten one's belt
节衣缩食；紧缩开支
   
例句：
If you want to salt away money, you'll have to tighten your belt for "saving is getting".
如果你想存些钱，你就得节衣缩食，因为“节省钱就等于挣钱”。
 

What's on your mind?
你在想什么呢？   

对话：
A: Do you have time to talk?
B: Sure, what's on your mind?
A: Let's have some coffee and talk about our wedding.
B: All right. I was about to tell you about it too.
　
A：你有时间吗？
B：当然，你想说什么呢？
A：我们去喝点咖啡，谈谈我们婚礼的事吧。
B：好的，我也正想和你谈谈这件事呢。