1 B1 习语 非正式
不小心睡着,尤其是在坐着时或在本该保持清醒的情况下。
"The lecture was so dull that half the class nodded off within the first ten minutes."
“
I was nodding off in front of the fire.
— A.A. Milne, 'Winnie-the-Pooh' style narrative — widely paraphrased; actual common literary phrasing found in numerous British texts of this period