Treeline
n. 树木生长线（按海拔标示的树木生长上限）
🗣️ 情景例句
I would just like to thank all of you,
我只是想谢谢你们大家，
Though thy enemy seem a mouse, yet watch him like a lion.
即使敌人小如鼠，也要防他如防虎。
Oh! Well, for that, you'd better find an English pen friend.
哦！那你最好为此找一个英文的笔友。