octagon

an octagonal coin

八角形硬币

牛津词典

Eight . A circle has 1 line , and an octagon has 8.

如果圈代表一个,八角形是多少?

期刊摘选

The design of octagon vase is tall and simple; the glaze color is green and clear.

八棱瓶造型简洁挺拔, 釉色青绿莹润.

期刊摘选

Various windows embellish the corridor, with the shape of square, circle, hexagon and octagon.

走廊的窗户形状各异，有方形，有圆形，有六角形，也有八角形。

辞典例句