In twenty years of mar-riage he has only taken two proper vacations.结婚二十年里，他只像样地度过两次假。Don't allow a minor irritation in the workplace to mar your ambitions.不要让工作中的一点烦心事打击了你的雄心抱负。It was not the custom for elderly peo...
He drills the choir to a high standard.他将合唱团训练到了一个高水平。We replaced hand picks with pneumatic picks and electric drills.我们把手镐换成风镐和电钻.Much of their study and revision was done to the thud of hammers and pneumatic drills...他...
Result: In optimal conditions, the yield of n - butyl gallate was over 93.8 %.结果: 在最佳实验条件下没食子酸正丁酯收率达93.8%.Iso - army gallate was synthesized by esterification of gallic acid with iso - army alcohol catalyzed by 4 - methy...
Cairo has only thirteen square centimetres of green space for each inhabitant.开罗居民的人均绿地面积仅13平方厘米。The tapeworm is an inhabitant of the intestine.绦虫是栖居肠内的寄生虫。Etruscan: a native or inhabitant of ancient Etruria.伊特鲁里亚人: 古代伊特...