leave somebody behind

Từ điển Oxford Advanced Learner 8th

ˌleave sb/sth beˈhind derived
1. usually passive to make much better progress than sb
•Britain is being left behind in the race for new markets.
2. to leave a person, place or state permanently
•She knew that she had left childhood behind.
see also ↑leave (⁸)
Main entry: ↑leave_derived