Quadric crank chain
[机] 四节曲
🧩 词语组成解析
a. 二次的\\nn. 二次曲面
crank
[kræŋk]
n. [机]曲柄;妙语，奇想;〈美俚〉想法古怪的人;〈口〉脾气乖戾的人;
vt. 转动曲柄移动;使弯曲;给…装上用于转动的曲柄;转动曲柄开动（引擎）;
adj. 奇异的，古怪的;易怒的;
chain
[tʃen]
n. 链子，链条;连锁，连续;拘束;连锁店或旅馆系列的事物;
vt. 用铁链锁住;监禁，束缚;
🗣️ 情景例句
It was so exciting to meet her again after so many years.
多年以后和她再相遇是多么让人激动啊!
Yay, a hole in one!
嘿！一杆进洞！
Although negotiators are optimistic, the details are complex enough that they may be hard-pressed to get a deal at all.
然谈判代表持乐观态度，但协议细节如此复杂，他们所面临的困难很可能使他们无法取得一致。