Impredicative
非直谓的, 非断言的
🗣️ 情景例句
Sorry, but he is out at the moment.
抱歉，他现在出去了？
He realized that he was heading in the wrong direction.
他意识到走错了方向。
Oh, I don't know. You decide!
哦，我不知道，你来决定。