管用 guǎn yòng — efficacious
guǎn (third tone, dipping) yòng (fourth tone, falling)guan3 yong4
efficacious
Levels 7–9· 2021 three-band, nine-level proficiency standardadjectiveverb
Meanings
efficacious
efficacious; useful
adjective
efficacious
efficacious
efficacious; useful