Definition
Too complex or incomprehensible for someone to understand.
雖以理解
The quantum physics lecture was completely over my head; I couldn't understand a thing.
量子物理學講座完全超出了我的理解範圍；我一點也聽不懂。
The complex theory he explained went completely over my head; I didn't understand it at all.
他解釋的複雜理論完全超出了我的理解範圍；我一點也不懂。
When they started talking about technical details, it all went over my head.
當他們開始談論技術細節時，我完全聽不懂。