Shéi yán cùn cǎo xīn, bào dé sān chūn huī — gǎn'ēn Mǔqīnjié.
Who says a blade of grass could repay the spring sun? — gratitude on Mother's Day.
Kàn dào māma de zhàopiàn, tā xiǎngqǐ le 'shéi yán cùn cǎo xīn' zhè jù shī.
Seeing his mother's photo, he thought of the line 'who says a blade of grass's heart...'
