1.night owl 夜猫子
owl 猫头鹰
Shawn is quite a night owl; he often stays up until sunrise.
Shawn 绝对是个夜猫子，他经常熬夜到通宵。
2.stay up 熬夜/晚睡
I stayed up until 3 o’clock this morning, so I feel exhausted now.
昨天熬夜到3点，所以现在觉得非常的疲惫。
3.night person 爱熬夜的人
名词后加 person 表示习惯或特长
morning person 爱早起的人
I used to be a night person when I was in college.
我大学的时候经常会做夜猫子。