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
This is something you'll have to work out yourself.
这就是你必须自己做出决定的事情。
It'll soon go out of mind.
这件事很快会被忘记。
Can you ring up the bus company?
你能给汽车公司打个电话吗？