亲爱的我长不高了没事来个最萌身高
[qīn ài de wŏ zhăng bù gāo le méi shì lái gè zuì méng shēn gāo]
'Qinai de wo changbufa le mashileige zuimei shenggao' translates to 'My dear, I can't grow taller anymore, no problem just reach the cutest height possible.' It shows a humorous or affectionate self-acceptance of height, with an emphasis on being lovable at any size.