这是一只蝙蝠用英语怎么说是 "This is a bat."
来源：bat 这个词源自古英语 bætt, 源自古德语 bato, 后来演变为中古英语 bakke, batte.
例句：
"The bat flew into the cave." (那只蝙蝠飞进了洞穴。)
"Bats are nocturnal animals." (蝙蝠是夜行动物。)
"The pttle boy was afraid of the bat hanging in the corner of the room." (那个小男孩害怕房间角落里挂着的蝙蝠。)