Some students have more aptitude for academic work than others.一些学生比其他学生更有学术才能。More than a quarter of the avoidable deaths in the developing world are caused by TB...发展中国家的可避免死亡中超过1/4是由肺结核引起的。I sent them more than 6,000 ...
The method was established for purification of diflubenzuron by crystal technique with mixed solvents.本文论述了利用混合溶剂——结晶法提纯除虫脲的分析技术.The separation and determination of the primary impurities of diflubenzuron by liquid chrom...
Investment could dry up and that could cause the economy to falter.投资可能会中断，而这会引起经济衰退。The fountain is reputed never to dry up.这口泉号称从不干涸。Dry up the dishes!把碟子擦干!...
上次患流行性感冒后使我至今软弱无力.The last attack of influenza has left me rather groggy.整个村子的人都得了流行性感冒.The whole village was attacked with influenza.那一年,流行性感冒来得异常凶猛.The grippe hit unusually severely that year....