快速看过岩块，寻找岩质较松有裂缝的地方。

Scan the rock, look for cracks that create a loose area.

youdao

这里的岩质属石灰岩，我们经常爬的地方叫做“大拱”（穿上洞）。

The rock was limestone and the main place that we climbed at was called the “Great Arch.

youdao

这里的岩质属石灰岩，我们经常爬的地方叫做“大拱”（穿上洞）。

The rock was limestone and the main place that we climbed at was called the “Great Arch.”

youdao