They found a bacterium visible to the human eye.他们发现了一种肉眼可见的细菌。They have isolated the bacterium in its pure form.他们已经把细菌分离出来,使它们处于较纯的状态.A bacterium is identified as the cause for his duodenal ulcer.一种细菌被断定为造成他十二指肠溃疡的根源....
旋转的涡轮形成了一块真空区域。The spinning turbine creates a vacuum.漩涡是由不断快速旋转的水形成的.A whirlpool is formed by water going round very fast.旋转的陀螺正在失去动量.The spinning top was losing momentum....
The vigorous pursuit of policies is no guarantee of success.坚决贯彻方针政策并不能保证成功。There is a consistent thread running through all these policies.所有这些政策中贯穿着一条始终如一的主线。...their governments' policies of feminizing low-paid f...