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Plankton and nekton are pelagic organisms.浮游生物和自游生物都是海面的生物.The fish live on the plankton.这种鱼靠吃浮游生物为生。Plankton is at the bottom of the marine food chain.浮游生物处于海洋食物链的最底层.Krill swam with the plankton , a school of young men...
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plankton的音标：plankton的英式发音音标为：['plæŋktən]plankton的美式发音音标为：['plæŋktən]...
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The first organisms that reproduced sexually were free-floating plankton.最早开始有性繁殖的生物是四处漂浮的浮游生物。The fish live on the plankton.这种鱼靠吃浮游生物为生。Plankton is at the bottom of the marine food chain.浮游生物处于海洋食物链的最底层....