我可以用微笑掩盖冷漠
[wŏ kĕ yĭ yòng wēi xiào yăn gài lĕng mò]
Translated, it means 'I can cover my coldness with a smile'. It suggests the user might hide true feelings behind a polite facade or smile even when they're actually apathetic or indifferent towards certain people or events.