Each egg will then develop into a planula: a swimming larval form.

然后，每颗受精卵会发育成幼体，即是游动的幼虫。

Many kinds of jellyfish have some ability to reverse aging and go back to a larval form.

许多种类的水母都有一定的逆转衰老，回到幼虫状态的能力。

On the other hand, I think Sheldon might be the larval form of his species, and someday he'll spin a cocoon and emerge two months later with moth wings and an exoskeleton.

另一方面，我在想谢尔顿可能是他这个物种的幼虫状态，有一天他会做茧，不出俩月就破茧成蝶。