您要查找的是不是：
- I told her to send the letter by airmail. 我叫她把那封信寄航空。
- He advised her to send the letter by airmail . 他建议玛丽用航空信寄。
- He advises her to send the letter by airmail. 他建议玛丽用航空信寄。
- I sent the letter by the hands of a friend. 信是我通过一位朋友送去的。
- I sent the letter by airmail. 我寄的是航空信。
- He advise her to send the letter by airmail. 他建议玛丽用航空信寄。
- He advises her to send the letter by airmail . 他建议玛丽用航空信寄。
- I sent the letter by a messenger. 我差信差送信。
- You can send the letter by airmail (regular mail, registered mail). 你可以邮寄航空信(平信、挂号信)。
- I sent the letter by air mail in order that it might reach him in time. 这封信我以航空信发出,以便他能及时收到。
- I sent the letter to my brother in error. 我错把信寄给我弟弟了。
- We sent the letter by airmail. 我们寄了封航空信。
- She sent the letter by airmail. 她寄的是航空信。
- We sent the letter by airmail . 我们寄了封航空信。
- I sent the letter first class on Monday. 星期一我已把信用快递寄出。
- You'd better send the letter by air. 这封信你最好寄航空。
- Youhad better send the letter by air. 这封信你最好寄航空。
- I sent the letter by air. 这封信我寄了航空。
- I sent the letter by express. 我这封信寄的是快递。
- I sent the letter by mail. 我把信邮寄啦。
