大家可能看到了，在迎宾瀑的上面，镌刻着“山东地下大峡谷”七个雄浑遒劲的大字。

The Guest-welcoming Waterfall, which is one of the twelve waterfalls of the Grand Canyon, is applauding at the entrance, to welcome every one of you.

youdao

各位游客，走到这里相信大家有一种豁然开朗的感觉，整个地下大峡谷旅游风景线主要有九个景段。

Here, I believe everyone may feel that the road opens up suddenly before us. All the underground canyon tourist scenery mainly includes nine spot areas.

youdao

目前的说法是地下的火山活动导致了大峡谷的形成。

One hypothesis relates the formation of Chasma Boreale to underlying volcanic activity .

youdao