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
Are there any sports clubs on campus?
校园中有什么体育活动俱乐部吗？
You can leave the cooking to me.
做饭的事你尽可以交给我。
who is which depending on whether the customer's account is in credit or is overdrawn.
究竟谁是债务人谁是债权人，要看储户的账户是有结余还是透支。