Jordan curve
约当曲线（等于simple closed curve）
🧩 词语组成解析
jordan
[['dʒɔ:dn]]
n. 约旦, 约旦河, 尿壶
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
Good night, Son.
晚安， 儿子。
She's meeting me at the Libe at seven.
她约好七点跟我在图书馆见面。
He had hardly had time to settle down when he sold the house and left the country.
还没等安顿下来就卖掉了房子，离开了这个国家。