被当作

• pass off as
• pass for

例句

1. 这个小男孩不喜欢被当作孩子看待。
   The boy objects to being treated as a child.
2. 有些只不过是被当作娱乐而不予考虑。
   Others are dismissed as nothing more than entertainment.
3. 很奇怪这样一个人竟然被当作是科学家。
   It is strange that such a man should pass for a scientist.