Reentrant polygon
凹多边形
🧩 词语组成解析
reentrant
[ri:'entrənt]
n. 再进去，凹角;
adj. 再进去的，凹角的;
polygon
['pɔligən]
n. 多边形，多角形;龟裂状;
🗣️ 情景例句
Looks like we should've bought a bigger one.
看来我们应该买一件大些的。
I have a strong throwing arm!
我的手臂力大无比。
After I had sat down, he said that business was very bad.
待我坐下后，他说生意非常不景气。