眼角呐最后一滴泪嘴角呐最后一抹笑
[yăn jiăo nà zuì hòu yī dī lèi zuĭ jiăo nà zuì hòu yī mŏ xiào]
It portrays a moment of emotional climax where one tries to hide sorrow (the last tear at the corner of the eye) behind an artificial smile (last smile). This suggests feelings of bitterness or self-comfort after experiencing setbacks or parting pains.