Epicycloids
(epicycloid 的復(fù)數(shù)) n.[數(shù)]圓外旋輪線, 外擺線
??? 情景例句
Monday morning.
星期一早晨。
We have agreed on all terms in the contract. Shall we sign it next week?
我們對(duì)合同各項(xiàng)條款全無異議，下周簽合同如何？
He threatened to call the police.
威脅說要去叫警察。