vipers

He unwarily treads upon a viper asleep just before his feet.

他不小心踩到正睡在他脚前的蛇。

Rattlesnakes belong to the viper family.

响尾蛇于蛇科。

Any of several venomous snakes of the genus Cerastes, such as the horned viper, having hornlike projections over each eye.

冠雉的（似火鸡的种树栖鸟，被用于比赛和食用）。