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
I love it when people come over to visit.
我喜欢别人来造访。
My brother came in,changed his clothes,and went out again.
我的兄弟进来了，换掉了他的衣服，并再去外面了。
He looked pale and his clothes were in a frightful state.
他面色苍白，衣服也搞得不成样子。