Development proposals of isoprene rubber in China were put forward.结合我国的实际情况,提出了发展我国异戊橡胶的几点看法.Isoprenoid ( terpene ): Class of organic compounds made up of two or more structural units derived from isoprene.类异戊间二烯化合物(亦称 ...
And he promptly handed the sheet of paper to the gaoler.说完,他一下子把信递给狱卒.The saucy little girl from Hartford promptly corrected his idea.活泼爽直的哈特福德姑娘马上修正他的主张.He paid his bill for the newspapers promptly.他立即支付了订报费。He was prom...
It remained an exceptionally rare book until it was reprinted in 1918.在1918年再版之前，这本书一直非常罕见。It was a rare pleasure to see him in action.看他打球是一种享受。As we approached the summit we were vouchsafed a rare vision.快到山顶时，我们有幸看到了难...
He contented himself by assuming an air of superiority.他表现出一副高高在上的样子以获得自我满足。We returned home thoroughly contented.我们心满意足地回家了。Tania kept the children reasonably quiet and contented.塔妮娅把孩子们哄得安安静静而又心满意足。...