The eight pits are surrounded by rectangular trenches, small circular and rectangular sacrificial pits, as well as trenches in the south and buildings in the northwest.

这八座坑的周边分布着矩形沟槽、小型圆形或矩形祭祀坑，以及南侧的灰沟、西北部的建筑。

After going down a fairly steep slope, our feet trod the floor of a sort of circular pit. There Captain Nemo stopped, and his hand indicated an object that I hadn't yet noticed.

我们走下相当陡的斜坡，我们的脚踩踏了一种圆形的井底地面。到这里，尼摩船长停住了，他手指一件东西，但我还不能看清楚。

Images show jets of gas emitted from very specific places on the surface, and there are wide circular pits here and there which may be gas vents, growing wider over time as the ice below is depleted.

图片显示，它表面的一些特定地方喷出了气体，到处都是圆形的大坑洞，可能是排气孔，随着时间的推移，下方冰层的枯竭，这些坑洞就越来越大。