你不明白吗

(作为一个成年人 就要为自己的行为负责) ── Previous context

“If you hit someone, apologize. Don't you understand such a simple thing?”

(你) ── Previous context

“Don't you understand why you're being told to stop? You...”

(这代表什么) ── Previous context

“Don't you understand? Dad, you're overthinking this.”