左耳钉永恒承诺右耳环永久誓言
[zuŏ ĕr dīng yŏng héng chéng nuò yòu ĕr huán yŏng jiŭ shì yán]
Translated into English: 'Left ear piercing for eternal promise, right ear hoop for an everlasting vow.' The left side is often regarded masculine whereas the right is usually perceived feminine, hence two-sided piercings stand for the commitment in a relationship or even marriage