v.(使)窒息
Some substances attack the brain stem causing a cessation of the breath so that one simply asphyxiates. 一些物质攻击脑干引起呼吸停止，并产生窒息。
Anacondas are nonvenomous constrictors, coiling their muscular bodies around captured prey and squeezing until the animal asphyxiates. 它们在陆地上行动笨拙但在水里却敏捷灵活。
Instead,they pound at a whale's blowhole with their claws,shredding the airway until it becomes so damaged that the beluga either asphyxiates or is forced to continually surface for air,which makes it easier prey for the bears. 相反，它们用爪子击打鲸鱼的鼻孔，撕扯它的呼吸道，直至鼻孔被撕烂，白鲸窒息或被迫不断浮出水面换气。这样熊捕猎起来就容易得多了。
