捍卫微笑
[hàn wèi wēi xiào]
'Defend the Smile' can mean several things, but all carry positive emotions within it. One explanation might be protecting personal cheerfulness or positivity in face of life challenges; Another possible interpretation involves promoting optimism around and spreading the energy. The owner possibly wishes to keep their positive mood forever, or encourages surrounding ones not letting the hardship destroy the smiles in one's lives.