表面上，他令人印象深刻，但他的知识实际上非常浅薄。

___Superficially, he is impressive, but his knowledge is really very slight.

许多人旅行流于表面，错过了更深层的文化体验。

Many people travel ___superficially, missing the deeper cultural experiences.

这份报告对问题的探讨只是浅尝辄止，忽略了根本原因。

The report only covered the issue ___superficially, ignoring the root causes.