night owl
US /ˈnaɪt aʊl/
UK /ˈnaɪt aʊl/

1.
夜貓子, 熬夜的人
a person who tends to stay up late at night
:
•
My husband is a real night owl; he often works until 2 AM.
我丈夫是個真正的夜貓子;他經常工作到凌晨2點。
•
As a night owl, she finds it hard to wake up early for morning classes.
作為一個夜貓子,她發現早上早起上課很困難。