Why, the grottos--caves of the island.

咦，岛上的岩洞呀。

youdao

He ascended into grottos paved with emeralds, with panels of rubies, and the roof glowing with diamond stalactites.

他梦见自己走进了岩洞，只见绿玉铺地，红玉筑墙，洞顶闪闪发光，挂满了金刚钻凝成的钟乳石。

youdao

Some of the colors in the grottos are still original and vivid.

窟内的一些颜色仍旧保持原样，栩栩如生。

youdao

Volcanic obsidian forms the island's spectacular cliffs and grottos, and since access to fresh water has always been of prime concern, the indigenous houses, or dammusi, were brilliantly conceived back in the 10th century with domed roofs designed to channel rainwater into adjoining cisterns.

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