Humming bird beats his wings almost 100 times per second.蜂鸟每秒钟拍动翅膀近100次.Bird's body size, there is also a small humming bird ostrich.鸟的体型大小不一, 既有很小的蜂鸟也有巨大的鸵鸟.This is a humming - bird moth.这是蜂鸟科的天蛾....
An intelligent computer will be an indispensable diagnostic tool for doctors.智能计算机将成为医生不可或缺的诊断工具。Cars have become an indispensable part of our lives.汽车已成了我们生活中必不可少的一部分。This is an indispensable part of his creed.这是他的信条中必不...
彻底刷牙有助于口气清新。A thorough brushing helps to freshen up your mouth.空气稀薄清新，其间日光蒙眬，寒气逼人。The air was thin and crisp, filled with hazy sunshine and frost.她的房子光线充足，空气流通，清新整洁。Her house is light and airy, crisp and clean....
他肯定很想做进一步的检查，如活组织检查和X光片等。He definitely wants to perform further tests, such as a biopsy and some x-rays.DDT等无数新的化学品, 很快渗进了每个活组织.Thousands of new chemicals , like DDT, soon resided in every living tissue.碳酸根离子也是活组织中的一种重要的...