这支烟灭了以后一路好走
[zhè zhī yān miè le yĭ hòu yī lù hăo zŏu]
Translated as 'Hope you are well after the cigarette is out', which may be an expression when someone wishes others goodbye or good journey, adding some sense of nostalgia or resignation. A lit cigarette sometimes denotes time together that will come to an end eventually.