She was exhausted by eight pregnancies in 13 years.13年中怀孕8次让她疲惫不堪。Five viable pregnancies were established.已确定5个胎儿能够成活。In the world as a whole, about ten per cent of all pregnancies are terminated.从全世界看来，所有怀孕的人中约10%的妊娠被终...
The method of determining Ni, Cu and Pbi n urine with isotope dilution mass spectrometry ( IDMS ) is described.介绍了采用同位素稀释质谱法 ( IDMS ) 测定冻干人尿样品中镍 、 铜、铅的含量.This article briefly describes the method and applications of isot...
A little neglect may breed great mischief.小不忍则乱大谋。She has already partaken of the pervading spirit of neglect which encompassed her.她已经沾染上了包围着她的那种到处蔓延的懒散精神.We often neglect to make proper use of our bodies...我们经常忘记该合理地使用...