英语语法分析

That woman has the most viperine tongue!

那个女人有最恶毒的舌头！

Snakes did not acquire their poison for use against man but for use against prey such as rats and mice, and the effects on these of viperine poison is almost immediate.

蛇产生毒液不是用来对付人类的，而是用于捕食老鼠耗子之类的猎物的，毒蛇的毒液几乎能立即毒死这些小动物。

This, however, means nothing. Snakes did not acquire their poison for use against man but for use against prey such as rats and mice, and the effects on these of viperine poison is almost immediate.

但是，这没有什么关系，因为蛇有毒液不是用来对付人的，而是对付它的猎物，诸如鼠类，毒液对这些猎物会立刻起作用。