回信英文咋说？

回信: [ huí xìn ]

1. reply
2. write back

例句与用法:
1. 我没收到回信。
I had no reply to my letter.

2. 任他没完没了地给我写信，我就是不回信。
He can write me letters till he's blue in the face, I'm not going to reply.

3. 简给他写了封长信，然而他一直没有回信。
Jane wrote him a long letter, but he never wrote back.

4. 我正写一封郑重其事的回信.
I'm composing a formal reply to the letter.

5. 她尽管很想再见到他, 但却不愿给他回信.
Despite wanting to see him again, she refused to reply to his letters.

6. 回信时请注明我方函件编号.
Please quote our reference when replying.

7. 回信免费邮寄至牛津牛津大学出版社宣传部.
Reply to Publicity Department, FREEPOST, Oxford University Press, Oxford.

8. 他不给我回信使我百思不解.
I am puzzled by his failure to reply/that he hasn't replied to my letter.

Re. (口语reply,文字Re.)

reply

reply a letter/ the letter

Reply the letter