hand in hand

Từ điển Oxford Advanced Learner 8th

ˌhand in ˈhand idiom
1. if two people are hand in hand, they are holding each other's hand
•They walked through the park hand in hand.
2. if two things go hand in hand, they are closely connected and one thing causes the other
•Poverty and poor health often go hand in hand.
Main entry: ↑hand_idiom