circumscribed

circumscribed的音标是[ˈsɜːkmɪskrɪbɪd]，基本翻译是“限定的，受限制的”，速记技巧是“circum-限，-scribed-画圈的”。

circumscribed这个词来源于拉丁语词根“circum”和“scire”，意思是“围绕”和“知道”。它的词形变化形式主要有复数形式circumscribeds，过去式和过去分词形式circumscribed，现在分词形式circumscribing。

相关单词：

1. boundary（边界）：这个词和circumscribed有相似的含义，都表示周围或边界的。

2. knowledge（知识）：knowledge来自于拉丁语词根“scire”，和circumscribed的词源相同，表示对事物的了解。

3. circle（圆圈）：circle和circumscribed都与圆有关，circumscribed表示围绕圆形的，circle则表示画圆。

4. circumscribe（画圆）：这个词表示画出或设计圆形的动作，和circumscribe这个词形变化形式相同。

5. enclosure（围栏）：这个词表示围绕或包围某个物体的动作，和circumscribed有相似的含义。

常用短语：

1. circumscribed circle

2. circumscribed square

3. circumscribed triangle

4. circumscribed circle from a point

5. circumscribed radius

6. circumscribed diameter

7. circumscribed polygon

双语例句：

1. The circumscribed circle of the triangle is very small.

这个三角形的外接圆非常小。

2. The circumscribed square of the triangle is easy to draw.

这个三角形的外接正方形很容易画。

3. The circumscribed radius of the circle is 5 units.

这个圆的周长半径是5单位。

4. The circumscribed diameter of the triangle is equal to the sum of its sides.

这个三角形的外接直径等于三边之和。

5. The circumscribed polygon of the triangle is a pentagon.

这个三角形的外接多边形是一个五边形。

6. The circumscribed circle is not unique for a given shape.

对于给定的形状，外接圆不是唯一的。

7. The circumscribed circle of a triangle is always a circle.

三角形的外接圆始终是一个圆。

英文小作文：

The circumscribed circle of a triangle is always a perfect circle, which is very important in geometry and other fields. It can help us understand the shape better and also help us solve some problems more efficiently. For example, we can use the circumscribed circle to measure the area of the triangle, which is much easier than using other methods. In addition, the circumscribed circle can also help us understand the relationship between triangles and other shapes, such as circles and squares, more clearly. Therefore, I think the circumscribed circle is very useful and interesting in geometry and other fields.