管用guǎnyòngefficacious; useful; effectiveHSK 7-9PronunciationguǎnyòngExample sentence这种老办法虽然简单,但还真管用。zhè zhǒng lǎo bànfǎ suīrán jiǎndān, dàn hái zhēn guǎnyòng.This old method is simple, but it's really effective.Read and choose an answerOne fixed sampleExplore a sample