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...
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....
Ophthalmic surgeons are now performing laser surgery to correct myopia.眼科医生现在采用激光手术来矫正近视。She'smuch happier performing live than in a recording studio.与在录音棚里录音相比，她更喜欢现场表演。She had started to devote her energies to tea...