少女旳泪不及海湛蓝少年旳心不及天宽广
[shăo nǚ dì lèi bù jí hăi zhàn lán shăo nián dì xīn bù jí tiān kuān guăng]
A girl’s tears are less blue than the sea, and a boy’s heart isn't wider than the sky, comparing emotions or states of mind using nature elements. Here, both lines describe vastness and deepness of youthful emotions in different perspectives.