校 校 xiào Strokes10 Radical 木 — tree Made of 木 tree 交 to connect How it's builtPhono-semantic — one part hints at the meaning, another at the sound Play the animation More about the character 校
长 长 cháng Strokes4 Radical 长 — long, lasting How it's builtIdeograph — the meaning is built from its parts Play the animation