房子里似乎悄然无声，安静得好像已经没人在住一样。The house seemed muted, hushed as if it had been deserted.如果当时我再多说一点的话，结果或许会不一样。Things might have been different if I'd talked a bit more.还有其他的房子能像这幢一样俯瞰首都吗？What other home offers such a comm...
Objective : To establish a method for determination of Irone in Iris tectorum.目的: 建立鸢尾原料中鸢尾酮含量的分析方法.Irone was obtained through three steps reactions with citral and acetone base catalyst to give pseudoionone.采用山苍子油提取得到的柠...
golfers practising their swings练习挥杆动作的高尔夫球手She spent hours practising the breast stroke.她花了数小时练习蛙泳。An art historian and collector, he was also a practising architect.他身为艺术历史学家和收藏家，同时也是一名从业建筑师。As we have been practising r...