Convexo-concave seal face
[化] 凹凸密封面
🧩 词语组成解析
concave
['kɔn'keiv]
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
seal
[sil]
n. 密封;印章;海豹;封条;
v. 密封;盖章;决定;封上（信封）;
face
[fes]
n. 面容;表面;脸;方面;
vt.& vi. 面对;面向…;正视;承认;
vt. （感到不能）对付;（明知不好办而）交谈;必须对付（某情况）;面临…;
face=fac表示脸、面 → 脸；表面；外表
🗣️ 情景例句
You've got the wedding-day jitters!
已经得了婚礼紧张症了！
Money is the sinews of war.
无钱莫打仗。
and the doctor in charge of the department is only too ready to provide them with these requirements.
负责门诊的医生也非常乐意为前来看病的人提供他们想要得到的药物，