Knocked
v. 敲, 擊, 打( knock的過去式和過去分詞 ); （心）怦怦跳; 把…撞擊成（某種狀態）; 批評
??? 情景例句
When you start discussing politics, I'm completely out of my depth.
你們一談論政治，我就一竅不通了。
What's so funny?
什么事那么好笑？
The continents form rugged tablelands which stand nearly three miles above the floor of the open ocean.
大陸是崎嶇不平的高地，高出遼闊海洋海底近三英里。