He used a three - sided piece of glass called a prism.
他使用的是一种三面玻璃体,称为三棱镜.
互联网
Three - sided equilateral triangle that can be customized by dragging any selection handle.
可通过拖动任一选择手柄来自定义的等边三角形.
互联网
Marketing is a three - sided function.
营销具有三个功能.
互联网