这就是所谓的催化裂化.It is known as catalytic cracking.裂化是使较重的低挥发性的碳氢化合物分裂成较小分子的化学分裂.Cracking involves the chemical breakdown of higher, less volatile hydrocarbons into smaller molecules.FCC(流化催化裂化 ) 是炼厂生产汽油的主要方法之一.The Fluid Catal...
Investment could dry up and that could cause the economy to falter.投资可能会中断，而这会引起经济衰退。He bought an investment property for $100,000 and put down $20,000.他以10万美元买下一处投资性地产，并支付了2万美元的定金。The job needs someone with a good track...
Campsites in the New Forest quickly filled up as thousands decided to spend the holiday under canvas.随着成千上万的人决定到户外宿营度假，新福里斯特的野营地很快人满为患。Cooks are also employed aboard ships and at construction and logging campsites.另外厨师还能...
博物馆里陈列着许多展览品.There are many exhibits on display in the museum.展览品包括全世界的间谍小工具和间谍故事.Exhibits include gadgets and spy stories from all over the world.如果这样的话, 我这里有一些复制展览品,你可以购买.If so, I have some replica exhibits here that y...
He hawked and spat.他用力咳了咳，吐了口痰。Some were haggling loudly with traders as they hawked their wares.有些人正在大声同兜售货物的商贩讲价钱.The peddler hawked his wares from door to door.小贩挨户叫卖货物....
She's got into Durham to read law.她考上达勒姆大学学法律.Why don't you come to stay with us next time you visit Durham?下次来达勒姆就住在我们这儿好 吗 ?Durham has much to offer the camera-toting visitor.达勒姆景点众多，对携带相机的游客来说大有可拍。...Humphre...
be censorious of petty failings对细微的不足非常挑剔a censorious or denunciatory nature挑剔或谴责性质His treatment of him is sympathetic rather than readily censorious.他对他的态度是同情而并非一味批评.Despite strong principles he was never censorious.虽然他...