Treeline
n. 树木生长线（按海拔标示的树木生长上限）
🗣️ 情景例句
Sometimes it sounds a little stubbon.
有时候，这显得有点固执。
You should be more patient with others.
你应该多容忍他人一些。
People change, but they don't suddenly chnge from being right-handed to being left-handed.
人会变，但他们不会从惯用右手而突然转变成左撇子的。