an abrupt and unannounced departure (without saying farewell)
双语例句
I wanted to go the football match, and so I took French leave from the office. Unfortunately, the boss found out and me to get his permission in future. 我总想去看足球比赛，因此我偷偷溜出了办公室。遗憾的是被老板发现了并告诉我以后要先得到他的允许。
