效 Strokes Write it Listen 效 xiào result, effect; effective HSK 3 10 strokes Radical 攵 Sound + meaning 18 words Built from交soundjiāoto connect; to deliver, to exchange; to intersect; to mix攵meaningpūto rap, to tap; script; to let go How it works攵 hints at the meaning (strike), and 交 jiāo hints at the sound.