我是柠檬亦会心酸我是柠檬亦会心酸
[wŏ shì níng méng yì huì xīn suān wŏ shì níng méng yì huì xīn suān]
The Chinese idiom here 'I am Lemon Also Feel Sour', implies that although the owner is resilient like a lemon, she can still feel hurt and sadness. It's possibly saying that while one might be tough on the outside, they also possess vulnerability inside. And the repetition might emphasize this sentiment even further.