en to unknown language translation catalogue (2 entries)

[ctx: EllipseCPP]
en: &Ellipse (Center, Point, Ratio)
target: 椭圆（中心、点、长短轴比）(&E)

[ctx: EllipseCPP]
en: Draw full ellipse from center, major point and ratio
target: 由中心、长轴点和长短轴比绘制完整椭圆
