They're rather like reefs really...so I think people can enjoy the natural formations.

它们有点像暗礁，我认为人们会喜欢这种自然形成物的。

Investigators debated whether the markings were manmade or natural formations.

调查人员争论这些标记是人造的还是自然形成的。

It's apparently an incredible coincidental natural formation likely caused by some sort of incredibly strange erosion.

这显然是一种令人难以置信的巧合自然形成，可能是由某种令人难以置信的奇怪侵蚀造成的。

Geologists continue to debate whether the wall is manmade or a natural formation.

地质学家继续争论这堵墙是人造的还是自然形成的。

Though it's healthy to look at such claims with skepticism, the team who discovered the anomaly maintained that it is not a natural formation.

尽管以怀疑的态度看待这些说法是健康的，但发现异常的团队坚持认为这不是自然形成的。

The natural formation of the country is the soldier's best ally; but a power of estimating the adversary, of controlling the forces of victory, and of shrewdly calculating difficulties, dangers and distances, constitutes the test of a great general.

夫地形者，兵之助也。料敌制胜，计险隘远近，上将之道也。