某种蟑螂喷射一种催泪性毒气――乙 基丙烯 醛.A species of cockroach sprays a substance , ethylacrolein, that is a kind of tear gas.即丙烯醛水合法, 环氧乙烷甲酰化法,生物发酵法.They are acrylaldehyde hydration, ethylene oxide formylation and biological zymolysis m...
Eventually your child will leave home to lead her own life as a fully independent adult, but in the meantime she relies on your support...你的孩子最终将长大成人，完全独立，离开家过自己的生活，不过在此期间她会靠你帮助。Meantime he was loading the pistols.而同时他在往...
The political debate stutters on.政治辩论一波三折地艰难进行着。The calls for reform come as intense debate continues among the leadership over the next five-year economic plan...领导层继续在为下一个五年经济计划激烈争论之际，有人发出了改革的呼声。To apply cloture to ( a...
His confession was greeted with derisive hoots.他的坦白引起了人们嘲讽的嘘叫。There was a short, derisive laugh.有人短促、嘲弄地笑了一声。She gave a short, derisive laugh.她讥讽地笑了笑。...
She sold trinkets to tourists.她向游客出售廉价饰品。He bought her trinkets and took her to the theatre.他给她买了些廉价首饰,并带她上戏院.He bought her trinkets and took her to the theater.他给她购买小装饰品并带她去看戏....