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
Nowadays many people go traveling for the holidays.
下面许多人都在假期里去度假。
Reading and listening to music is the ultimate in relaxation.
一面读书，一面听音乐是最佳的休息。
'It doesn't matter,' I said.'I'll get off here.'
“没关系，”我说，“我就在这儿下吧。”