The jellyfish absorbs oxygen through its ectoderm and can store it in the mesoglea.

水母通过外胚层吸收，将其储存在中胶层中。

When he scratched the top of such a stack with a scalpel and exposed it to water, it did, indeed, come loose and fall off as the water seeped into the underlying glue.

他用一把手术刀将这种堆叠结层刮破后，让它与水接触。水渗入下方胶层，层果真松动脱落。