to send sth by post<英>to send sth by mail<美>邮寄某物
2.(to place)+ person将…派往；打发；安排去；+ personnel, troops派遣
Why are you here? Who sent you?你怎么在这里？谁让你来的？
The government decided to send troops to the region.政府决定派军队进驻该地区。
3.(convey)+ message, regards传达；告知
4.【电信】(transmit)+ signal(用无线电)发送
5.(move, knock)使移动(至某地或某一点)
His blow sent the champion to the floor.他一拳将那位冠军打倒在地。
6.(cause change)使进入(某种状态)