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
What happened?
怎么样？
He who plays with fire gets burned.
玩火者必自焚。
Good morning. Could I have some bottles of milk, please?
早上好。我想买几瓶牛奶？