origin of coordinate的用法和樣例：
例句
- Drag onto the page, then drag one line end to ordinate origin and one to the feature.
拖到繪圖頁上，然後將一個線端拖到坐標原點，一個線端拖到部件。 - This point, and the global Cartesian coordinate system origin, define the line along which the object is viewed while looking toward the origin.
這個點，連同全局笛卡爾坐標原點，定義了當我們朝向原點觀察時，觀察的視線。
