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The seas are full of the cast-offs of humanity, from tub toys that have fallen off container ships to boats swept away in storms to bottled messages deliberately set adrift.

海洋中充满着人类的废弃物，有从货运船上掉下的浴缸玩具，也有被风暴冲走的小船，还有故意封存在漂流瓶中纸卷。

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However, there are performance trades-offs that must be understood and evaluated against the overall set of requirements.

然而，必须根据全部的需求来理解和评估性能的权衡。

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Similar to Major League Soccer (MLS) in the U.S., eight franchise teams from across India will face off against each other twice each before heading to a set of play-offs in December.

CNN: Ljungberg ready for Indian Super League

OXERA, an energy consultancy, points out that a wider set of objectives has involved regulators in politically sensitive trade-offs.

ECONOMIST: Regulation: Irregular | The