水母是刺丝胞动物门的一员，它们的足迹遍布每一个海洋，无论是在海面还是深海区，我们都能看到它们的身影。
Jellyfish are free-swimming members of the phylum Cnidaria . They are found in every ocean, from the surface to the deep sea.
水母是刺丝胞动物门的一员，它们的足迹遍布每一个海洋，无论是在海面还是深海区，我们都能看到它们的身影。
Jellyfish are free-swimming members of the phylum Cnidaria . They are found in every ocean, from the surface to the deep sea.
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