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
We should get to work,
我们得开始做事了。
I would like to enlarge this film.
我要放大这底片。
He was caught, put in chains, and sent to America as a slave.
他被抓住了，带上镣铐，送到美国当奴隶。