Heptagon
n. 七角形, 七边形
📖 牛津释义
heptagon
n
geometric figure with seven sides and angles 七边形; 七角形.
🗣️ 情景例句
Yes. In there. Good luck.
是的 ，在那里面。祝你好运。
Oh, no! Not today, please!
哦，不要！今天就饶了我吧。
you are conditioned by the conventions of the community to such a degree that it is very difficult to conceive of anything really destructive.
社团的风俗习惯会严格地制约你，使你很难有破坏性的想法。