Concave mirror
凹镜
🧩 词语组成解析
concave
['kɔn'keiv]
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
🗣️ 情景例句
Have you ever taken Cathay Pacific?
你有没有搭过国泰航空公司的班机？
He seems to have a lot of strange ideas.
他似乎有很多奇怪的想法。
There is something comforting about the warm glow shed by advertisements on cold wet winter nights.
寒冷潮湿的冬夜里，广告灯箱发出的暖光，会给人某种安慰。