上贡

上贡	shàng gòng	to present tribute (to a suzerain, the emperor etc)
上	shǎng	used in 上声
上	shàng	(bound form) up; upper; above; previous / first (of multiple parts) / to climb; to get onto; to go up / to attend (class or university) / (directional complement) up / (noun suffix) on; above
贡	Gòng	surname Gong
贡	gòng	to offer tribute / tribute / gifts