Definition
Used to express that one does not understand a situation or someone's behavior.
我不明白
It beats me why she suddenly quit her job.
我真不明白她為什麼突然辭職。
It beats me how to solve this math problem.
我真不知道怎麼解這道數學題。
It beats me why he chose that option, it's puzzling.
我真不明白他為什麼選擇那個選項，這很令人困惑。