And wet snow can stick to the skis, creating a kind of suction effect that slows them down.

湿雪会粘在滑雪板上， 产生一种吸力效应， 减慢它们的速度。

The shark slowly approaches their prey, and,   when they're close enough, they open their large buccal cavity and create a suction effect  to suck them up.

鲨鱼慢慢地接近猎物，当它们足够近时，它们会张开大的口腔并产生吸力效应将猎物吸起来。