contours

contours的音标是[kənˈtɔːrs]，意思是轮廓。记忆技巧如下：c像弯弯的眉毛，o像圆圆的眼睛，t像长长的睫毛，ur像上下弯曲的曲线，组合起来就像一幅弯弯曲曲的山脉轮廓（contours）。

Contours这个词的词源可以追溯到拉丁语和古法语，具体来说，它是由“contour”这个词演变而来的。Contour在拉丁语中意为“轮廓”，而在古法语中则进一步引申为“等高线”或“等高轮廓”。

变化形式：

1. Contour - 名词形式，表示地形或物体的轮廓线。

2. Contour line - 名词形式，表示地图上的等高线，用于表示地形的高低变化。

相关单词：

1. Contour map - 等高线图，用于显示地形的高低变化。

2. Isoline - 等值线，常用于地理学中表示某一地理特征的相同值范围。

3. Isotope - 同位素，是具有相同原子序数但质量不同的同一元素的不同原子。

4. Contour plot - 轮廓图，一种用于显示数据分布和变化情况的图表类型。

5. Contour gradient - 等高线梯度，表示等高线变化的速度和方向。

6. Contour interval - 等高线间隔，用于在地图上确定等高线的间距。

7. Contour map maker - 制图人员，负责制作等高线图的专业人员。

8. Contour line analysis - 等高线分析，一种用于分析地形或数据分布的方法。

9. Contour map projection - 等高线地图投影，一种用于将地理坐标系统中的数据转换为地图上的投影的方法。

10. Contour tracing - 等高线追踪，一种用于绘制等高线图的技术或过程。

常用短语：

1. contour map 轮廓图

2. contour lines 等高线

3. contour tracing 勾画等高线

4. contour tracing map 等高线图

5. contour map of the earth 地球等高线图

6. contour map of the mountains 山峰等高线图

7. contour lines on the map 在地图上的等高线

双语例句：

1. The contour map shows the location of the mountains and valleys clearly. （英文）

2. The contour lines on the map indicate the height differences between different areas. （中文）

3. The contour tracing map helps us understand the terrain and its features better. （英文）

4. The contour lines on the mountainous region are very complex and difficult to trace. （中文）

5. The contour map of the earth"s surface is a very useful tool for studying the planet"s geography. （英文）

6. The contour lines on the map show the variations in elevation and indicate the presence of hills and valleys. （中文）

7. The contour tracing tool is a great way to visualize the terrain and its features. （英文）

英文小作文：

Contours are a crucial tool for understanding the terrain and its features, whether it"s a mountain range, a valley, or even the surface of the earth itself. Through contour maps, we can see how different areas are related to each other, and how they change in elevation as we move from one point to another. This helps us make informed decisions about how to navigate or build on these areas, and it also helps us understand our planet better.

However, contour maps are not just for professionals or experts in geography; they can be a valuable tool for anyone who wants to learn more about their environment or explore new places. Whether you"re hiking in the mountains or exploring a new city, contour maps can help you understand the terrain and avoid getting lost or stuck in difficult areas. They can also help you understand how to use natural resources more efficiently, such as water or soil, and how to avoid environmental hazards like flooding or landslides.

In conclusion, contour maps are an essential tool for anyone who wants to understand their environment better, whether it"s for personal or professional reasons. They help us see how our planet works, and they provide us with valuable information that can help us make informed decisions about our surroundings.