Hello Amin, It means "to deliver" 捎 口 信 deliver a message. 捎 带 (shāodài) 每 次 出 差 我 都 捎 带 买 些 礼 物 。 Every time I go away on business I always pick up presents.

捎means to take/bring something for someone. 你能给我捎个信么? "捎信" : to take a message 你下次回国时,帮我捎点儿东西吧. besides, when "捎带" together used, then it refers to something else. (顺便) 我今天去市中心办事,捎带逛了逛街,买了点儿东西. "捎带 do something" means you do it just spontaneously and it's convenient for you.