世界上最小的彩虹是眼泪
[shì jiè shàng zuì xiăo de căi hóng shì yăn lèi]
'世界上最小的彩虹是眼泪' poetically translates to 'the smallest rainbow in the world is tears.' This phrase contrasts tears with rainbows, symbolizing how small moments of sorrow or sadness can still be beautiful or significant, much like a miniature version of a typically large and hopeful symbol such as a rainbow.