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
Why can't you work at home, Marilyn?
为什么不能在家中工作呢， Marilyn？
Let us imagine a hypothetical case where we disagree.
让我们假设一个我们不同意的状况。
He is commonly supposed to be foolish.
他是公认的傻瓜。