Concussions
(concussion 的复数) n. 剧烈摇动, 震荡\\n[医] 震荡
🗣️ 情景例句
That's very nice of you. Where did you get it? It's not a print.
真细心！你从哪儿弄来的？这还不是复制的呢！
Do you usually do arithmetic on Sunday?
你通常在星期日做算术吗？
It was my pleasure.
不用谢。