Word: 管用 (guǎnyòng) 管用 dictionary entry guǎnyòng efficacious; useful Full dictionary entry for 管用 Example sentences using 管用 2 sentences, showing page 1 of 1. 这把旧伞还管用，你拿去用吧。 Zhè bǎ jiù sǎn hái guǎnyòng, nǐ ná qù yòng ba. This old umbrella is still useful, so take it and use it. 那药不会管用。 Nà yào búhuì guǎnyòng. That medicine isn't going to help.