Have you sent in your application yet?
你把申请书寄去了没有？
Please send the letter on to my new address.
请把信件转寄到我的新地址。
She sent to say that she was coming home.
她托人捎话说她要回家了。
The people we met in France have sent us a card.
我们在法国结识的人给我们寄来了一张贺卡。
I'd like to send this express, please.
劳驾，我要寄快递。