Concave grating
[化] 凹面光栅
🏥 医学释义
凹光栅
🧩 词语组成解析
concave
['kɔn'keiv]
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
grating
[['greitiŋ]]
n. 光栅, 摩擦, 摩擦声\\na. 令人气恼的, 刺耳的
🗣️ 情景例句
I'd like to say something first.
我想先说几句话。
A woman's work is never at an end.
妇女的活计做不完。
But as they soon discovered, disguises can sometimes be too perfect.
但他们很快就发觉，化装的效果有时过分完美了。