表面上，他看起来非常愉快。

On the ___surface, he seemed very pleasant.

玛普尔小姐表面上是一位温柔的女士，但内心却思维敏锐。

Miss Marple is a gentle lady on the ___surface, but inside she has a sharp mind.

他表面上显得自信，但实际上很害羞。

He appears confident on the ___surface, but he is actually quite shy.