She was dancing while someone substituted at the piano.她在跳舞,别人代她弹钢琴.Glass blocks are sometimes substituted for ordinary bricks.有时,玻璃砖被用来代替普通的砖.He substituted for the worker who was ill.他顶患病的工人干活....
She was dancing while someone substituted at the piano.她在跳舞,别人代她弹钢琴.The synthesis methods of melatonin, related tryptaminetryptamine derivatives and substituted indoles are discussed.从人工合成的角度综述了美乐托宁及有关化合物色胺、色胺衍生物及吲哚衍生物的制...
Firstly, we introduce the definition, properties integral theory of fractional Brownian motion.首先介绍了关于分数布朗运动的定义, 性质.One theory is that the infection has been present in humans for a very long time...有一种理论认为，这种传染病存在于人类中已经...
他一拧就把把手拧了下来.He pulled the handle off with a wrench.他猛力一拧, 将那把手拧了下来.With a violent twist , he wrenched off the handle.把毛巾再拧一拧吧.Give the towels another wring....