1. Jump to conclusion 妄下结论
Don't jump to conclusion. We have to figure it out first.
不要妄下结论，先把事情搞清楚。
2. Junk food 垃圾食品
If you want to lose weight, you should stop eating so much junk food.
如果你想减肥，就不能吃这么多垃圾食品。
释义：
junk: 垃圾，废物
junky: 垃圾的，废物的
