As a player he was unselfish, a true team man.作为一名选手，他毫无私念，真正把自己摆在团队中。It was unselfish of you to help us.你无私地帮助了我们.She started to get a reputation as an unselfish girl with a heart of gold.她开始被人们赞誉为有一颗金子般的心的无私女孩。...
Despite the mixed metaphor, there is some truth in this judgement.尽管有混用的比喻，这个判断还是有些道理的。a game of football used as a metaphor for the competitive struggle of life用来喻指生活中的激烈斗争的一场足球比赛'This vale of tears'is a metap...
In a multiple - step procedure, the extracted mucopolysaccharide is esterified to mucopolysaccharide polysulfate.经过一系列多步骤的程序, 萃取的粘多糖被酯化成多磺酸粘多糖(MPS).There were much high esterified pectin the, which caused cloudy and sedi...