Tra từ sit in on something - Từ điển Oxford Advanced Learner 8th

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Từ điển Oxford Advanced Learner 8th

sit in on something ˌsit ˈin on sth derived to attend a meeting, class, etc. in order to listen to or learn from it rather than to take an active part •I was allowed to sit in on an executive meeting. Main entry: ↑sit_derived