Knock against
（使）撞击, 击打; 偶然碰到; 磕碰
🧩 词语组成解析
knock
[nɑk]
n. 短促的敲打（声）;爆震声;敲击声;敲门（或窗等）声;
vi. 猛烈敲击;与某物相撞;撞到了桌子;
vt. （心）怦怦跳;把…撞击成（某种状态）;批评;
🗣️ 情景例句
My head is killing me.
我的头疼死了。
I hope my visit does not cause you too much trouble.
我希望这次来参观没有给你们增添太多的麻烦。
Well, I'm afraid we have to go now.
哦，恐怕我们现在得走了。