上心

上心	shàng xīn	carefully / meticulously / to set one's heart on sth
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
心	xīn	heart / mind / intention / center / core / CL:颗,个