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 think I can stay at home
我觉得我可以待在家
Do you know the boy whose aunt is an artist?
你知道那男孩的姑妈是艺术家?
Will you help me fix up this sheet? Then it'll give us some shade.
帮我固定一下布单，好吗？这样可以给我们一些阴凉。