Word: 要素 (yàosù) 要素 dictionary entry yàosù essential factor; key constituent Full dictionary entry for 要素 Example sentences using 要素 2 sentences, showing page 1 of 1. 所以，友情也是幸福的一个要素。 Suǒyǐ, yǒuqíng yě shì xìngfú de yí gè yàosù. So friendship is also a requirement for happiness. 自信是伟大事业的第一要素。 Zìxìn shì wěidà shìyè de dìyī yàosù. Self-confidence is the principal element of any great endeavor.