There are over 3,000 known species of these colorful sea slug relatives and new ones are discovered nearly every day.

已知的彩色海参类动物超过了3000多种，而且几乎每一天就可以发现一些新品种。

This is a solar-powered sea slug.

这是太阳能海蛞蝓。

They think that it could be a huge, unknown kind of sea slug.

他们认为“尼西”可能是一种庞大的、还不为人类所知的海蛞蝓。

I learned years later that it was in fact a type of Nudibranch, or sea slug.

几年后，我才知道，事实上，它是一种裸鳃类动物，或者说它是一种海蛞蝓。

A sweet custard seemed to conclude the meal, but it was followed by a salty sea slug topped with green chilies.

甜蛋饼上来了，似乎意味着这顿饭的结束，但是紧接着又上了一盘盖着青椒的海参。