precipitousadj.险峻的;突然的;急躁的
Precipitouspath led down the mountainside.沿着山腰下来有一条陡峭的山路。
Precipitous slopes and inaccessible precipices缠岩绝壁
"conditions that precipitously increase the birthrate""prices rose sharply"
"the mountains rose precipitously from the shore"