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
It's well worth the time.
这很值得花时间。
How's your brother?
你的兄弟好吗？
We talked and wondered about the people who had lived here before.
我们谈论并且很好奇以前住在这里的人们。