掩饰即将掉落的泪埋葬已经碎掉的心
[yăn shì jí jiāng diào luò de lèi mái zàng yĭ jīng suì diào de xīn]
It means 'Hiding the Tears about to Fall and Burying the Shattered Heart'. These kinds of metaphors often refer to trying to mask emotional vulnerability in front of others even though inner pain and grief are barely hidden.