“run in the family”的意思真的不是“在家里跑”，真实含义是世代相传；家族遗传。

【例句】
According to a new study cheating really does run in the family, at least as far as men are concerned.
一项新研究发现，出轨确实可以世代相传，至少对于男人是如此。

My parents and I all have a gift for drawing.It seems to run in the family.
我爸妈和我都有绘画天赋，似乎我们家遗传艺术天分。