plank·ton /ˈplæŋ(k)tən, ˌtɑn/
浮游生物
Plank·ton n. Biol. All the animals and plants, taken collectively, which live at or near the surface of salt or fresh waters. -- Plank*ton*ic a.
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plankton
n : the aggregate of small plant and animal organisms that float
or drift in great numbers in fresh or salt water