Shéiyáncùncǎoxīn, bàodésānchūnhuī — — gǎn'ēn Mǔqīnjié.
Who says a blade of grass could repay the spring sun? — gratitude on Mother's Day.
Kàndào māma de zhàopiàn, tā xiǎngqǐ le " shéiyáncùncǎoxīn " zhè jù shī.
Seeing his mother's photo, he thought of the line 'who says a blade of grass's heart...'