单词first class
adj.: 第一流的；一级的；一等的；最优的
n.: 一级；甲等；一类邮件
网络: 一等品；第一类；头等的
第一流的；一级的；一等的；最优的:
in the best group; of the highest standard
（座位、车厢、舱位）头等的:
connected with the best and most expensive way of travelling on a train, plane or ship
第一类的（英国邮件等级，投递最快）:
(in Britain) connected with letters, packages, etc. that are delivered most quickly, or that cost more to send
一级优等的（英国大学学位）:
used to describe a university degree of the highest class from a British university
头等的
乘头等舱
一类邮件
一级;甲等
Bill: Ah. . . economy. But I thought if I make a " pass " at you, then my boarding pass would pass for first class.
比尔：嗯……经济舱，但我想如果我得到你的允许，我就可升级到头等舱。
Metrics and visualizations help you identify important parts of your code, allowing you to extract them as first-class design elements.
指标和可视化有助于识别代码的重要部分，从而提取出一些设计元素。
Soon afterwards he was hauled out of the first-class section of an Air France flight to Paris.
他从法国航空飞往巴黎的头等舱里拖出来随即就被扣压。
XML"s status in databases has changed in the last couple of years from a temporary worker to that of a first class citizen.
XML在数据库中的地位在过去两年中已经发生了变化，从“临时工”变成了重要成员。
He did not get an immediate reply but he was elevated to the rank of marquis, first class, a reward for his perceived loyalty to the Qing.
虽未得到立即答复，但清政府授予他侯爵爵位，跻身头等阶层，作为他保护朝庭的奖赏。
How much is the fare for two first-class tickets to Paris?
两张到巴黎去的头等票多少钱？。
The boat must be built a few libraries, respectively, for the first class and second class services.
在船上必须要建造几个图书馆，分别为头等舱和二等舱服务。
The founding principles of the company have never changed - business integrity, first class service and a commitment to people.
公司的原则从未改变，诚信经营，一流的服务和负有责任感。
Apart from being among the longest and widest in the sky, the First Class seat can quickly and easily extend into a full-length bed.
除了拥有所有航空公司中最长最宽的尺寸之外，头等舱座位更能快速轻易地伸展成为一张完整的床。
Hudson was all cook-a-hoop at the news. He had never expected to get a first-class degree.
赫德森听到消息后喜形于色。他根本没想到获得一等学位。