offering up a sacrifice;laying offerings on the altar
上供
❶offer sacrifices on the altar ❷grease or oil sb’s palm (with sth) 许多人在清明节到亲人墓前～。Many people lay offerings before the tombs of their beloved on the Pure Brightness Day./给上级～是一种腐败行为。It is a corrupt practice to grease the superiors’palms.