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
He and my Grandpa both went there.
他和我爷爷都曾在那儿读书。
Never fry a fish till it's caught.
捉到鱼，才煎鱼。
What are your payment terms?
你们的付款方式如何？