所以然 Save Sign in to save words suǒyǐrán ㄙㄨㄛˇ ㄧˇ ㄖㄢˊ the reason why Character by character 所(suǒ)actually 以(yǐ)use 然(rán)correct Words with 所以然 Ending with 所以然 知其然而不知其所以然 A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0