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来源：雅诚德英语网
By 2001, the 60, 000 volunteers had collected around 150, 000 volumes for BookEnds.
截至2001年，60000名志愿者已为BookEnds募集到了近15000册书。
By 2001, the 60, 000 volunteers had collected around 150, 000 volumes for BookEnds.
截至2001年，60000名志愿者已为BookEnds募集到了近15000册书。