n. limbless scaly elongate reptile; some are venomous
n. a deceitful or treacherous person
n. a tributary of the Columbia River that rises in Wyoming and flows westward; discovered in 1805 by the Lewis and Clark Expedition
n. something long, thin, and flexible that resembles a snake
n. 蛇, 阴险的人
vi. 曲折行进
vt. 迂回, 拉, 急抽