Lastly and this one is probably my favorite, ice volcanoes.

最后一个，可能也是我最喜欢的，就是冰火山。

Singer said it is difficult to know exactly when the ice volcanoes formed.

辛格表示，很难确切知道这些冰火山是什么时候形成的。

Ice volcanoes form over lakes by waves forcing water or slush to erupt high in the sky through mounds of ice.

冰火山通过波浪在湖面上形成，迫使水或雪泥从冰堆中喷射到高空。

The mission uncovered many surprises about the dwarf planet, including strange formations that some are calling 'ice volcanoes' on its surface.

这次探索揭开了许多矮行星的秘密，包括其表面奇特的冰火山。