Closed polygon
[计] 封闭多边形
🧩 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
polygon
['pɔligən]
n. 多边形，多角形;龟裂状;
🗣️ 情景例句
Well, he's here with his daughter to have lunch.
嗯， 他和他女儿已到这里等吃午餐了。
Don't forget to put stamps on your letter.
别忘了贴邮票。
I gave much time to the old car.
我在这辆破车上花了不少时间。