His father was appointed postmaster.他的父亲被任命为邮政局长。Howe carefully cultivated Daniel C. Roper, the Assistant Postmaster General.豪谨慎地和邮政副部长丹尼尔·C.罗珀拉近关系。John Doe was appointed postmaster vice Richard Roe retired.约翰·多伊被任命为邮政局长...
We heard thunder growling in the distance.我们听见远处有隆隆雷声.The dogs were leaping and growling at the full stretch of their chains.那些狗又蹦又叫，把链子绷得紧紧的。The lay about the deck growling together in talk.他们在甲板上到处游荡,聚集在一起发牢骚....
It took four years for Britain just to decimalise its own coinage.英国花了4年时间才将其币制改为十进制。...the world's finest collection of medieval European coinage.世界上最完整的欧洲中世纪硬币收藏The city produced its own coinage from 1325 to 1864....
Each bit can flip 1020 times per second, equivalent to a clock speed of 100 giga - gigahertz.每个位元每秒可翻转1020次, 大约比振?频率10亿赫兹的时钟快1000亿倍.In a traditional atomic clock , atoms are illuminated by microwaves, in the gigahertz fr...