Simple closed curve
[数]简单闭曲线(指不自交的一条闭曲线,亦作Jordan curve)
🧩 词语组成解析
closed
[klozd]
adj. 关闭着的，封闭着的;密闭着的，保密的;<美>准备好了的，定了契约的;
v. “close”的过去式和过去分词;
clos=close关闭+ed已...的→关闭了的
curve
[kɝv]
n. 弧线，曲线;曲线状物;弯曲物;[棒]曲线板;
vt. 使弯曲;使成曲线;使成弧形;
vi. 弯曲;弯成曲线，弯成弧形;沿曲线行进;
adj. 弯曲的;曲线形的;
🗣️ 情景例句
I'm sorry but the food was late and it was cold when it got here. I don't think I want to pay.
真抱歉饭菜上晚了，而且它上桌时已经变冷了，所以我不想为此付账。
Speak of the devil.
我们才刚好聊到你而已。
But exactly how does a newcomer to the stock market go about achieving that?
但是，一个股票市场的新手又如何能做到这一点呢？