brink

The rare mountain gorilla is currently on the brink of extinction due to habitat loss.

(Chinese) 由于栖息地丧失，稀有的山地大猩猩目前正处于灭绝的边缘。

The two countries were on the brink of war after the border dispute intensified.

(Chinese) 在边界争端加剧后，两国已处于战争的边缘。