回 回 huí Strokes6 Radical 囗 — enclosure Made of 囗 enclosure 口 mouth How it's builtIdeograph — the meaning is built from its parts Play the animation
到 到 dào Strokes8 Radical 刂 — knife Made of 至 reach, arrive 刂 knife How it's builtPhono-semantic — one part hints at the meaning, another at the sound Play the animation