send off (something)orsend (something) off:to send (something) by mail or another service邮寄;发送
I sent off the package yesterday.我昨天就把包裹寄出去了。
2
send off (someone)orsend (someone) offchiefly British:to order (a player who has broken a rule) to leave the field for the remainder of the game罚(某人)下场
He was sent off [=ejected] for striking another player.他因殴打另一选手被罚下场。
3
send off for (something):to ask to receive (something) by sending a letter, coupon, etc., to someone by mail邮购;函索
I sent off for [=sent away for] a sample.我去函索要了样品。