He unwarily treads upon a viper asleep just before his feet.
他不小心踩到正睡在他脚前的
上。
He unwarily treads upon a viper asleep just before his feet.
他不小心踩到正睡在他脚前的上。
Rattlesnakes belong to the viper family.
响尾属
。
Any of several venomous snakes of the genus Cerastes, such as the horned viper, having hornlike projections over each eye.
冠雉的一属（形似火鸡的一种树栖鸟，
被用比赛和食用）。
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