月光下，我能看到远处山脉的轮廓。

In the moonlight, I could see the ___contours of the distant mountains.

这份报告清晰地勾勒出了新教育政策的轮廓。

The report clearly outlines the ___contours of the new education policy.

地图上的等高线帮助我们了解这座山的坡度。

The ___contours on the map help us understand the slope of this mountain.