级长

级长	jí zhǎng	class president (in a school) / class captain / cohort leader
级	jí	level / grade / rank / step (of stairs) / CL:个 / classifier: step, level
长	cháng	long / (bound form) length / (bound form) strong point; forte / (bound form) to be good at / (literary) surplus; spare (Taiwan pr. [zhang4])
长	zhǎng	chief / head / elder / to grow / to develop / to increase / to enhance