钻石没有你耀眼太阳没有你温暖
[zuàn shí méi yŏu nĭ yào yăn tài yáng méi yŏu nĭ wēn nuăn]
It means 'you outshine diamonds; the sun is not as warm as you.' Used as a hyperbolic statement to highlight the importance of a special person or thing in one's heart, beyond comparison with ordinary objects or phenomena.