- 这封信必须用英文写吗？
Does this letter have to be written in English?
- 这封信寄错地方了。
This letter is wrongly addressed.
- 你会用英语写一封信吗？
Can you write a letter in English?
- 可以帮我寄这封信吗？
Would you mind mailing this letter for me?
- 这儿有你的一封信。
Here is a letter for you.
- 这封信是给你的。
Here is a letter for you.
- 把邮票贴在信封上。
Stick a stamp on the envelope.
- 他裁开了那个信封。
He cut the envelope open.
- 把这封信寄了。
Mail this letter.
- 我想你读一下这封信。
I want you to read this letter.
