手拉手
if two people are hand in hand, they are holding each other's hand
密切关联;相连带
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.贫困和健康不良常有连带关系。
释义来自《牛津高阶英汉双解词典》第 9 版