stay behind

US /steɪ bɪˈhaɪnd/
UK /steɪ bɪˈhaɪnd/
"stay behind" picture
1.

残る, 居残る

to remain in a place after others have left

:
I had to stay behind to finish my work.
仕事を終えるために残らなければならなかった
The teacher asked a few students to stay behind after class.
先生は数人の生徒に授業後残るように頼んだ。
2.

遅れをとる, 後れを取る

to make less progress than others

:
If you don't study, you'll stay behind in class.
勉強しないと、クラスで遅れをとるよ。
The company is afraid it will stay behind its competitors if it doesn't innovate.
革新しなければ、競合他社に遅れをとることを会社は恐れている。