Derivatives of bromine are much more active than the corresponding one of chlorine.溴的衍生物的活性要比相应的氯的衍生物大得多.Polyfluorene and its derivatives is one of the most promising electroluminescent polymers.聚芴衍生物是最有发展潜力的电致发光材料之一.The...
She was a child prodigy, giving concerts before she was a teenager.她是个神童，十来岁不到就举办音乐会了。For further information on the life of William James Sidis, see Amy Wallace, "The Prodigy".想了解关于威廉·詹姆斯·西迪斯生平的更多信息，请参阅埃米·华莱士所著《神童》。...a...
你的奥兰多之行怎么样？How was your trip down to Orlando?奥兰多是一位和蔼可亲的人.Orlando is a genial man.奥兰多本身充满了朝气，有很多便宜的旅馆和吃饭的好去处。Orlando itself is vibrant, full of affordable accommodation and great places to eat....
There's been a lot in the papers about the problems facing stepchildren.报纸上有很多关于继子女所面临的问题的报道。His commitments to the stepchildren will not reduce his obligation to his natural children.他对继子女的关爱和投入不会减少他对亲生孩子的责任。Do ste...