back one foot snake 倒单脚 ; 后单脚
one foot snake 正单脚
One poisonous colubride snake-Rhabdophis tigrinus 一种有毒的游蛇虎斑颈槽蛇
We even have one snake that is about four meters long, but I keep him at home.
我们甚至有一条大约四米长的蛇,但我把它养在家里。
In all three trials, Barney began by using a stick for inspection. One involved a rubber snake.
全部三次测试中,巴尼都先用小棍子试探。其中一个测试对象是一条橡胶蛇。
There's one species of snake, the brown tree snake, that uses both constriction and venom, depending on its prey.
有一种蛇——棕树蛇——会根据猎物的不同,同时使用毒液和挤压的方法来杀死猎物。
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