Treeline
n. 树木生长线（按海拔标示的树木生长上限）
🗣️ 情景例句
It is. Come on out to the patio.
的确如此。请到院子里来吧。
Dogs that bark at a distance bite not at hand.
远处叫得凶的狗，不会近身来咬人。
wants agreement on general principles, which could be applied to many types of products and perhaps extended to other countries.
则希望就普遍的原则取得一致，而这些原则适用于许多不同产品，同时可能延伸到其它国家。