I saw this big brown cow swishing its tail and staring at me.我看见这头棕色的大母牛瞪着我,唰唰地甩着尾巴。The swishing of the grass signalled the approach of a person.草叶发出的沙沙声表明有人走过来了。Horses try to keep flies off by swishing their tails from side to side.马儿刷刷地左右甩着尾巴驱赶苍蝇。He heard a swishing sound.他听到嗖的一声。