What can a diver see?
本书让孩子们比较海洋环境与陆地环境的不同,从而指出水下并非人类的天然居所。然而,潜水装置的发明使人类得以更加充分的探索海底世界。
What can a diver see?
What can a diver see?
What can a diver see?
What can a diver see?
What can a diver see?
What can a diver see?
What can a diver see?
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