求翻译：伦敦奥林匹克组委会估计可安排大约660万张奥运会门票与150万张残奥会门票。它们都将从2011年起售，且至少一半的门票价格低于20英镑。是什么意思？

London Olympic organizing committee estimated that about 6.6 million Olympic Games tickets can be arranged with the 1.5 million Paralympic tickets. They are from the 2011 sale, and at least half of the ticket price is less than 20 pounds.

London Olympic Organizing Committee will be expected to be approximately 6.6 million for a 1.5 million Olympic tickets with a Paralympic Games tickets. They will be sold in 2011, and at least half of the ticket price is less than 20 pounds.

London Olympics Organization committee estimated may arrange about 6,600,000 Olympic Games admission tickets and 1,500,000 remnant Olympics admission tickets.They all sell from 2011, also a half admission ticket price will be lower than 20 pounds at least.

London Olympic Organizing Committee arranged approximately 6.6 million Olympic tickets and an estimated 1.5 million Paralympic tickets. All of them will be sold starting from 2011, and at least half the ticket price less than 20 pounds.

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