1. On the surface, everything seems fine, but there are many problems.
表面上看，一切似乎很好，但实际上有很多问题.

2. He appears happy on the surface.
他表面上看起来很快乐.

3. On the surface, the plan looks simple, but it is quite complex.
从表面上看，这个计划看起来很简单，但其实非常复杂.

A: Everything seems to be going well for the company on the surface.
A：从表面上看，公司的经营状况良好。

B: Really? I heard they are having financial difficulties.
B：真的吗？我听说他们正面临财务困难。

1) 表面上

2) 从外观看

3) 表面层级上

1. 表面上，从表面上看

e.g. On the surface, it's a simple matter.
表面上看，这只是件简单的事.

phrase

1. As it appears or seems, without considering the deeper reality or underlying facts.

Synonym: superficially