Definition: a small animal like a mouse with wings that flies at night Level: B1
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.
