He was careful and diligent. I was all over the place.他细心且勤奋，我则稀里糊涂。The historical research was impressively diligent.该项历史研究非常地认真、彻底。A spotless stove told us that his mother is a diligent housekeeper.炉子清洁无瑕就表明他母亲是个勤劳的主妇....
He is diligent in whatever he does.他无论做什么都很勤奋。He is the more diligent of the two boys.他是这两个男孩中较用功的一个。The schools produced diligent excepting from older manuscripts, summarizing, and commentaries.各学院从古代手稿里作了辛勤的摘录, 总结和评注的工...
所有国会议员每两年重新选举一次。Every two years all the congressmen stand for re-election.众议院的四百三十五名议员每两年选举一次.The 435 members of the House are elected every two years.他每两年有一次探亲假.He gets home leave every two years....