| 释义 |
Draw a line through the center of the circle.通过圆心画一条线。Draw a line through the centre of the circle.穿过圆心画一条直线。The centres of concentric circles coincide.同心圆的圆心重合。Points on a circle are equidistant from its centre.圆周上各点与圆心等距。Points on a circle are equidistant from its center.圆周上的各点到圆心的距离相等。A circle without a center is inconceivable.一个没有圆心的圆是无法想像的。 |