单词 | plankton |
释义 | Word Frequency plankton(ˈplæŋktən) noun the organisms inhabiting the surface layer of a sea or lake, consisting of small drifting plants and animals, such as diatoms Compare nekton Derived forms planktonic (plæŋkˈtɒnɪk) adjective Word origin C19: via German from Greek planktos wandering, from plazesthai to roam |
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