first class

1 most comfortable accommodation in a train, ship, etc （火车、 船等的）头等: Smoking is not allowed in first class. 头等舱中不准吸烟. * [attrib 作定语] first-class carriages, compartments, seats, etc 头等的车厢、 车室、 座位等. 2 class of mail most quickly delivered 第一类邮件（快件）: First class costs 5p more. 第一类邮件贵5便士. * [attrib 作定语] A first-class letter should arrive the following day. 按第一类邮件投递的信应於次日到达. * Ten first-class stamps, please. 请来十张快信邮票. 3 in the best group or highest category; excellent 第一流的; 最好的; 最优的: The entertainment provided was first class. 提供的招待是一流的. * [attrib 作定语] They can afford to eat at first-class restaurants. 他们去得起一流的饭店. * She got first-class results in her exams. 她的考试成绩优异. * They're first-class people you'll like them. 他们是大好人--你会喜欢他们的. adv by the best or quickest form of transport or mail 以最好的和最快的方式运输或邮寄: travel first class 乘头等车[船/飞机]旅行 * I sent the letter first class on Monday. 星期一我已把信用快递寄出.

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