蝙蝠在夜空中俯冲。

___Bats were swooping through the night air.

一只蝙蝠飞近我的左耳，远处我听到一些奇怪的声音。

A ___bat flew close to my left ear and far away I heard some strange sounds.

很多人害怕蝙蝠，因为它们夜间飞行。

Many people are afraid of ___bats because they fly at night.