She looked as if the photographer had caught her by surprise.看上去，她好像被摄影师搞了个猝不及防。He pounced on the photographer, beat him up and smashed his camera.他突然扑向摄影师，痛打了他一顿，还摔碎了他的照相机。Grace Robertson started as a photographer with ...
热变性的小麦胚乳能阻止移植在其上的胚的生长.Heat - denatured wheat endosperm prevented the growth of an embryo implanted on it.我们迟早要问:这个定律是否经得起相对论不变性的检验?Sooner or later we must ask whether this law meets the test of relativistic invariance.这些...
Prices at the fairs are stable with a slight decline.价格稳中有降.Innovation has always been a hallmark of world's fairs and expositions.创新历来是世界交易会和博览会的一项标志.Our company puts up exhibIt'stands at fairs and expositions...