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- First class mail goes faster but it is more expensive. 头等邮件更快地到，但是这更昂贵。
- You'd better send this heavy letter by first class mail. 你最好把这封厚信按第一类邮件邮寄。
- All my packages will be shipped by usps first class mail with tracking number. 所有小样都是全新的;其他正品会有注明;还有需要知道批号的MM请问我.
- Well,we send all the first class mail by plane to the East Coast,so you don't need an airmail stamp. 是这样，我们寄到东海岸的一级邮件全部用飞机传递，所以你不需要贴航空邮票。
- Well, we send all the first class mail by plane to the East Coast, so you don't need an airmail stamp. 是这样,我们寄到东海岸的遗迹犹见全部用飞机传递,所以你不需要贴航空邮票。
- He always travels first class expense is no object. 他出门总是用头等票－－费用不成问题。
- She took a first class in Oxford. 她在牛津大学获得头等优异成绩。
- Tom came to school late and missed the first class. 汤姆迟到且没有上到第一堂课。
- This ticket doesn't entitle you to travel first class. 你这张票不能坐头等位。
- It might be a good idea to mail the letter first class. 一级邮递这封信倒是个好主意。
- I'd like a first class ticket to Warsaw for this Sunday. 我要一张本星期日飞往华沙的头等机票。
- That article is an example of first class journalism. 那篇文章是一流新闻文字的范例。
- I sent the letter first class on Monday. 星期一我已把信用快递寄出。
- These hand embroider one is all first class goods. 这些手绣织品都是一等品。
- Can I transfer to a first class coach? 我可以换到头等车厢吗？
- The entertainment provided was first class. 提供的招待是一流的.
- I'll send the package first class. 我把这邮包按第一类邮件邮寄。
- The cooking in this restaurant is first class. 这家餐馆的烹饪属一流水平。
- Will that be first class or economy class? 您愿意要一等舱还是经济舱?
- Would you like to go first class or business class? 您要头等舱还是公务舱?
