Copied books are as good as copyrighted ones, but they don't cost much, usually less than half the price.
复印书和正版书一样好，但它们的成本并不高，通常不到一半的价格。
Do not miss this unique opportunity to buy all six books at half the recommended price.
不要错过这个半价购买所有六本书的惟一机会。
Rather than allow the books to go missing, he sold them at half price.
与其把书搞不见了，他宁愿半价卖了。
Rather than allow the books to go missing, he sold them at half price.
与其把书搞不见了，他宁愿半价卖了。
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