嘴角余温眼角泪痕
[zuĭ jiăo yú wēn yăn jiăo lèi hén]
'Zuojiaoyuwen Yanjiao Leihen' means 'Corner Mouth Warmth and Corner Eye Tears’. It vividly describes the complex expression of being both joyful and tearful after a profound and heart-touching encounter: There is still some warmth remaining in mouth corner due to recent smiling (joy), but there’re tears in eyes as well - it's hard to suppress emotions, so it overflows into visible signs of crying.