earmark
专向拨出

例句：
The school has decided to earmark 20 percent of its funds for book purchases.
学校决定拨出20%的经费用于购买课本。

burn one's bridges
义无返顾

例句：
I will be willing to burn my bridges if what I do will help change the present situation.
如果我所做的事情能有助于改变目前的情况，我将义无返顾。

Did you have fun?
你玩儿得开心吗？

对话：
A: I went to the bar with my old classmates last night.
B: Did you have fun?
A: Yes, we had a lot of fun. We talked and sang and drank a lot of beer.
　　　　　　　　 　　　　　　　　 　　　　　　　　 　　　
A：昨晚我跟我的老同学们去酒吧了。
B：你们玩儿得开心吗？
A：是的，我们玩得很开心。我们聊天唱歌，还喝了很多啤酒。