《如此"清洁工"》以大海为背景，以海洋动物为中心，以童话故事为表现，为读者呈现出一个神秘莫测的海洋国度。其中，既介绍了海洋软体动物的神秘本领，又突出了一些拥有施展剧毒能力的海洋动物，并且展现了海洋动物不为人知、稀奇古怪的一面。
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