水的化学分子式是H2O.The chemical formula for water is H 2 O.测得的准确分子量与具体的分子式完全吻合.The precise molecular weight that is measured can be uniquely associated with a specific moleculer formular.仅从分子式, 我们就能推断分子中的 “ 不饱和度 ”.From the mo...
她穿的那件粗花呢夹克已经很旧了。The tweed jacket she wore had seen better days.他身穿一套粗花呢西服，看上去像是量身定做的。He was wearing a tweed suit that looked tailor-made.粗花呢从不过时，手感很好，结实耐磨。Tweed is timeless, tactile and tough....
It'shows littleness to notice such things.注意这类事情只能表示心胸狭窄而已.A man’s deed is the touchstone of his greatness or littleness.行动是一个人伟大或者渺小的试金石。The littleness of one's fellows in the mob of life is a very strange exp...