1、a three-sided regular polygon
有三條邊的等邊多角形。

2、Three-sided equilateral triangle that can be customized by dragging any selection handle.
可通過(guò)拖動(dòng)任一選擇手柄來(lái)自定義的等邊三角形。

3、Marketing is a three-sided function
營(yíng)銷具有三個(gè)功能。