These polyparies were sticking to rocks, shells of mollusks, and even the stalks of water plants.

这些水螅丛附在岩石上，软体动物的介壳上，并且附在蛇婆茎上。

And we bring this 20-yard can, we dump the shells in the rock shell place.

我们带着这个 20 码的罐子，我们把贝壳倾倒在岩石贝壳的地方。