This is how the trap knows to snap8 on a moving insect and not on a raindrop which only touches a trigger hair once.
这就是陷阱如何知道困住的是一只移动的昆虫而非雨滴的原因,因为雨滴只会碰触一次短毛。
drizzling fog:毛雨霧
毛雨滴 drizzle drop | 毛雨雾 drizzling fog | 浮锚 drogue