hold onto something

Từ điển Oxford Advanced Learner 8th

ˌhold ˈon to sth | ˌhold ˈonto sth derived
1. to keep sth that is an advantage for you; to not give or sell sth to sb else
• You should hold on to your oil shares.
• She took an early lead in the race and held on to it for nine laps.
2. to keep sth for sb else or for longer than usual
• I'll hold on to your mail for you until you get back.
Main entry: ↑hold_derived