Pack ice is an area of ice that is floating on the sea. It is made up of pieces of ice that have been pushed together.
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Pack ice is an area of ice that is floating on the sea. It is made up of pieces of ice that have been pushed together.
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Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006