diametral

diametral的音标是[daɪəˈmetrəl]，基本意思是“直径的，径向的”，可以与圆、圆周、圆心等搭配。记忆技巧是：diameter（直径）去掉e就是diametral。

diametral这个词来自希腊语词根dia，意思是“通过”，和metr-或metros，表示“测量”或“直径”。它的变化形式主要有：diametric（表示“直径的”）、diametrical（表示“与直径相关的”）、diametrically（表示“在直径上”）。

相关单词：diameter（直径）、diametricality（直径的性质）、diametricals（一种政治立场，主张通过直接民主的方式解决社会问题）、diametrical opposition（对立的立场）、diametrical deviation（偏离中心）。

例如，diameter是一个常见的词汇，意思是圆的直径，而diametrical opposition可以用来描述两个立场极端对立的人或观点。这些单词都与直径和测量有关，体现了diametral这个词的基本含义。

diametral常用短语：

1. diametral to (sb/sth)

2. diametrical opposition

3. diametrical difference

4. diametral opposite

5. diametral angle

6. diametral line

7. diametral measurement

双语例句：

1. The two views are diametrally opposed to each other.

这两种观点截然相反。

2. They are diametrally different in their approach to the problem.

他们在处理这个问题的方法上截然不同。

3. The two diametrical opposites were unable to see eye to eye.

这两个水火不容的人始终合不来。

4. The angle formed by the two diameters is called the diametral angle.

两个直径所形成的角叫做直径角。

5. The diametral line of a circle is the straight line passing through the centre of the circle and perpendicular to both its diameter and circumference.

圆的直径线是一条直线，它通过圆的中心并垂直于圆的直径和圆周。

6. The diametral measurement of a circle is its radius.

圆的直径测量就是它的半径。

7. The two diameters of a circle are equal in length.

圆的两条直径长度相等。

英文小作文：

Circle and Diameter

Circle is a perfect geometric shape, and one of its most important characteristics is that it has two diameters, which are two straight lines that pass through the center of the circle and are equal in length.

When we draw a circle on a piece of paper, we can easily see that its diameter is the longest line that passes through its center, and that there are two of them, one on each side of the circle.

The diameter is very important because it helps us understand some of the other characteristics of the circle, such as its circumference, which is equal to two times the length of a diameter.

In addition, knowing the diameter allows us to measure other important characteristics of the circle, such as its area, which is proportional to the square of the diameter.

In summary, the diameter is a fundamental concept in geometry and it plays an important role in understanding and describing circles and other similar shapes.