there is more to somebody/something than meets the eye

US /ðɛr ɪz mɔr tu ˈsʌmˌbɑdi/ˈsʌmˌθɪŋ ðæn mits ði aɪ/
UK /ðɛr ɪz mɔr tu ˈsʌmˌbɑdi/ˈsʌmˌθɪŋ ðæn mits ði aɪ/
"there is more to somebody/something than meets the eye" picture
1.

深藏不露, 另有隐情

there are hidden depths or complexities to a person or situation that are not immediately obvious

:
Don't judge him too quickly; there is more to him than meets the eye.
不要太快评判他;他这个人深藏不露
The old house looks simple, but there is more to it than meets the eye.
那座老房子看起来很简单,但它深藏不露