等周不等式 Save Sign in to save words děngzhōubùděngshì ㄉㄥˇ ㄓㄡ ㄅㄨˋ ㄉㄥˇ ㄕˋ the isoperimetric inequality Character by character 等(děng)wait for 周(zhōu)surname Zhou 不(bù)no 等(děng)wait for 式(shì)type A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0