管用

管用	guǎn yòng	efficacious / useful
管	guǎn	variant of 管
管	Guǎn	surname Guan
管	guǎn	to take care (of) / to control / to manage / to be in charge of / to look after / to run / to care about / tube / pipe / woodwind / classifier for tube-shaped objects / particle similar to 把 in 管...叫 constructions / writing brush / (coll.) to / towards
用	yòng	to use; to make use of; to employ / (coverb) with; using / to need; to have to (usu. used in the negative or in questions) / usefulness; utility / (bound form) expense; outlay / (courteous) to eat; to drink / (literary) hence; therefore