一生一次的心动一次一生的守候
[yī shēng yī cì de xīn dòng yī cì yī shēng de shŏu hòu]
'Heart racing once in a lifetime; waiting for you for a lifetime'—a profound expression about the unique moment when one's heart races because of someone, promising a lifelong devotion after just one meeting or feeling of falling in love.