连他也不懂 lián tā yě bù dǒng — even he doesn't understand

Definitions

1. even he doesn't understand

Examples

• 这题太难，连他也不懂。

  The problem is so hard that even he doesn't understand it.

• 方言生僻，连他也不懂。

  The dialect is so obscure that even he can't make it out.