outwardly

表面平静

appearing peaceful on the surface, despite inner feelings

表面上显得平和，不管内心感受如何

appearing self-controlled and calm on the surface

表面宁静

appearing tranquil and untroubled on the surface

表面上看起来平静，但内心可能并非如此。例如：'在表面宁静的外表下'。