Concave cutter
[机] 凹面铣刀
🧩 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
I take this threat very seriously.
我认为这种威胁非同小可。
Too many cooks spoil the broth.
人多嘴杂。厨师多烧坏汤？
Take it easy.
别紧张。