Starting today it will cost you more to mail that first class letter.

从今天开始，第一类邮寄信件的邮寄费将要上涨。

youdao

It's the last weekend you can use 39 cents to send out a first-class letter.

这是最后一个周末你能够用39分钱去寄头等信件。

youdao

Xu looked very young teachers, class letter, read out his preparation very good.

徐老师看上去很年轻，上课时一丝不苟，看出来他备课很充分。

youdao

It is also, I should say, on the basis of this letter, which is why I ask people from time to time to remove their caps in the class room, from the House of Study.

也应可以说是因为这封信，促使我总是要求,课堂上的同学摘下鸭舌帽来听课，至少在学习的殿堂里。

耶鲁公开课 - 政治哲学导论课程节选

The proposed Forever stamp is good for a first-class letter no matter when you stick it on the envelope.

FORBES: The Bupkes Bond

The cost of a second-class stamp for a regular letter increased from 36p to 50p.

BBC: Price cap for parcels confirmed by mail regulator Ofcom

Although a first class stamp was placed on each letter, it did not cover the total postage cost, so they were held at the sorting office by Royal Mail.

BBC: Wrong postage on Weymouth Pavilion redundancy letters