The courts ordered busing to desegregate the schools.法律规定要用校车运送学生来打破学校的种族隔离。We have succeeded in persuading many districts to desegregate voluntarily.我们已圆满地劝服了许多地方自愿取消种族隔离....
Boy, that salesman was the biggest airhead I've ever seen.□好家伙, 那个男售货员是我见过的最愚蠢的人.She's a total airhead!她完全是个大傻瓜！I'm not a complete airhead.我可不是个十足的大傻瓜.I’m not a complete airhead.我可不是个十足的大傻瓜。...
The synthetic method, main properties and application of alkyl indican has been introduced.本文介绍了烷基糖苷的合成方法, 主要性能和用途.This preparation uses dialkyl imidazole salt, alkyl pyridine salt or caprolactam and fatty acid as reacta...