Closed curve
[计] 闭曲线
🧩 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
Is it supposed to rain today?
今天要下雨吗？
The first step is as good as half over.
第一步的成功等于事情的一半已完成。
If I work in the garden, I have to sit down and rest every five minutes.
如果我在花园里干活，每5分钟就得坐下来休息。