Fluorin can avoid brown striation and whiten skins.氟:能消除褐色斑,使皮肤变白.The free fluorin content in liquid multi - vitamin was quantitatively analyzed by using a simple potentiometric titration.使用简单的电位滴定法定量分析维生素中游离氟的含量.It is c...
显然,凡听到过他对困难大声吵嚷的人,都知道他脾气暴躁.His bilious temperament was apparent to all who heard him rant about his difficulties.对困难推三阻四可不是他的作风.To put off difficulties is not in his character.她对困难毫不在意,总是而带笑容.She can shrug off her troubl...
Some good might come of all this gloomy business.生意不景气也未必全是坏事。The short-term outlook for employment remains gloomy.近期的就业前景依然暗淡。Inside it's gloomy after all that sunshine.尽管阳光明媚，里面依然暗淡无光。...