这封信8月6日在伦敦盖过免费邮戳。The letter was franked in London on August 6.所有的信件上都盖有阿伯丁郡的邮戳。All the letters bore an Aberdeen postmark.信封上盖有赫尔辛基的邮戳。The envelope was postmarked Helsinki....
潜水员下潜到超过危险线的深水中去了.The diver went into the deep water beyond the danger limit.为了下潜,里边还有个密封小水槽―负槽.For diving there's small sealed tank inside, the negative tank.潜水艇的下潜速度非常快.Submarine can submerge very quickly....
Brits in the list include actress Tilda Swinton and heiress Jemima Khan.荣登此榜的英国名人还包括女演员蒂尔达斯文顿和豪门女继承人杰迈玛可汗.Say a bouquet, sister Jemima ,'tis more genteel.妹妹,用字文雅点儿, 说一束花.Jemima: Yes, I was foxed by two or three of t...
titanium alloys钛合金Haynes then went on to invent the muffler and different metal alloys.然后,海恩斯接着又发明了消音器及各种不同的金属合金.Brazing of copper, copper alloys, silver and molybdenum etc.钎焊铜及铜合金 、 银、钼等金属.This paper presents a new type...