Concave lens
[化] 凹透镜\\n[医] 凹透镜, 近视镜片
🧩 词语组成解析
concave
['kɔn'keiv]
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
lens
[lɛnz]
n. 透镜，镜头;眼睛中的水晶体;隐形眼镜;汽车的灯玻璃;
🗣️ 情景例句
Good luck! And stop worrying!
祝你好运， 别再担心！
What does you want to eat?
你要吃什么？
It was necessary to recognize that these institutions which are based on the same premises,
必须认识到，这些建立在相同前提基础上的风俗，