大吵一场然后忘记的人比那些把所有感情都闷在心里的人较易维持健康。
row,吵架的意思。have a good row,大吵一场
“People who have a good row and then forget it ”是主语,who 引导了定语从句,该从句中又有两个谓语,一个是大吵一场,一个是忘记。
are doing their health better 是谓语,从do...good的短语变为比较级演变而来,对健康更有好处的意思
those代替those people,
who bottle up their feelings
bottle up,原意是用瓶子封装,这里是说把自己的感情闷在心里。