成 成 chéng Strokes6 Radical 戈 — spear, lance, halberd Made of 丁 nail 戈 spear, lance, halberd Play the animation
效 效 xiào Strokes10 Radical 攵 — to rap, to tap Made of 交 to connect 攵 to rap, to tap How it's builtPhono-semantic — one part hints at the meaning, another at the sound Play the animation More about the character 效