公私を区別する
keep one's private and public life [affairs] separate
【形式ばった表現】 make a proper distinction between the public and private (domain)
公私を混同する
confuse [mix up] private and public [official] matters [affairs]
【形式ばった表現】 fail to distinguish [make a proper distinction] between the public and private (domain [spheres of life])
公私ともに
both officially and privately.
読み方 こうし
Public and private matters; official and personal affairs:(=の) public and private; official and personal