英语翻译蝙蝠有900多个不同的种类,遍及世界各地.看上去 很像鸟类.但它们没有羽毛,也不生蛋.它们是哺乳动物：雌性产下幼

英语翻译
蝙蝠有900多个不同的种类,遍及世界各地.看上去 很像鸟类.但它们没有羽毛,也不生蛋.它们是哺乳动物：雌性产下幼仔,用乳汁哺育.某些种类的蝙蝠是飞行高手,它们能够在狭窄的地方非常敏捷地转身,蝙蝠是唯一能振翅飞翔的哺乳动物,夜间,蝙蝠靠皮波探路和捕食.它们发出人类听不见的声波.当这声波遇到物体时,会像回声一样返加来,由此蝙蝠就能辨别出这个物体是移动的还是静止的,以及离它有多远.长耳蝙蝠在飞行中捕食昆虫,它也能从叶子 把虫抓下来.它的大耳朵使它能接受回声.墨西哥无尾蝙蝠在暮色中飞舞 .蝙蝠什么都吃,包括果实、鱼类、花粉、甚至血.大部分蝙蝠在夜间飞行时捕食昆虫,每只蝙蝠都能辨别出自己发出的声波,这说明即使与其他蝙蝠一起捕食,它也不会被别的声波所干扰.

楼上译得不错,让我来修改下那就更完美了
There are about 900 species of bats worldwide.Bats look like birds,but they do hot have feathers,neither do they lay eggs.Bats are mammals; Mother bats give birth to the baby bats and feed them with milk.Certain types of bats are flight master,they can turn their body around quickly in narrow places.Bats are the only mammals in the world naturally capable of flight because of their most distinguishing feature—their forelimbs are developed as wings.At night,bats locate preys and other nearby objects by emitting high pitched sounds and listening to the echoes.Bats produce signals with a frequency that people cannot hear.When the sound waves meet an object,they will be reflected back.Bats can then distinguish whether the object is moving or stationary as well as estimate the distance between the object and the bats.The long-eared bats http://en.wikipedia.org/wiki/Grey_long-eared_bat can prey on the insects in their flight and is also capable of grasping the insects off the leaves.Its big ears allows it to receive echoes.Mexican free-tailed bats fly graciously in the night.Bats can eat anything,including fruits,fish,pollen and even blood.Most of the bats prey at night for food.Every bat can identify its own waves.This explains why bats would not be disturbed even when they are preying together.