1. tree 樹
2. forest 森林
3. woods 樹林
4. leaves 樹葉
5. Christmas tree 圣誕樹
7. money tree 搖錢樹
8. money doesn't grow on trees 樹上不長錢
9. barking up the wrong tree 找錯對象
10. go climb a tree 滾開
11. up a tree 陷于困境
eg. He is up a tree with this problem. 對于這個問題我已經沒有辦法了。
12. tall as a tree 橡樹一樣高
13. Let's make like a tree and leave. 我們走吧。