方 ㄈㄤ fāng 枘 ㄖㄨㄟ ˋ ruì 圆 ㄩㄢ ˊ yuán 凿 ㄗㄠ ˊ záo 方 ㄈㄤ fāng 枘 ㄖㄨㄟ ˋ ruì 圓 ㄩㄢ ˊ yuán 鑿 ㄗㄠ ˊ záo to put a square peg in a round hole incompatible (idiom)