封 的中文句子和英文句子

管子以熔合管端的方法封闭起来了。

The tube was sealed off by fusing the material together.


他们威胁说要对该国实行封锁。

They are threatening to impose a blockade on the country.


公爵命令仆人把一封信送给国王。

The duke ordered the servant to send a letter to the king.


这封信只用一张纸写成。

The letter was written on a single sheet of paper.


一部好字典封语言学家的帮助甚大。

A good dictionary is the handmaid of the linguist.


研讨会旨在改革旧的封闭式的评价制度，从而建立新的教育评价体系。

The purpose of this seminar is to reform the old closed system so as to establish the new system of educational assessment.


他把邮票贴在信封上。

He glued a stamp onto the envelope.


她几个星期也琢磨不透他那封奇怪的来信.

She's been puzzling over his strange letter for weeks.


寄一封航空信的邮费要多少？

What is the postage for an air letter?


她今天早晨收到了几封公函。

She received several official letters this morning.