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
you have so much energy and so many years of experience.
你精力这么好 ，又有这么多年的经验。
It's my treat this time.
这次我请客！
Tianjin will be cloudy and the temperature will...
天津多云，气温……