Snakes did not acquire their poison for use against man but for use against prey such as rat s and mice, and the effects on these of viperine poison is almost immediate.是什么意思_Snakes did not acquire their poison for use against man but for use against prey such as rat s and mice, and the effects on these of viperine poison is almost immediate.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句