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签售
signature promotion
Last Update: 1970-01-01
Usage Frequency: 1
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115. 4月，联合国大学水环卫所为加州大学出版社出版出版的《我们垂危的地球》一书举办了发行和签售活动。
115. in april, unu-inweh held a launch and signing event for the book our dying planet by university of california press.
Last Update: 2016-12-04
Usage Frequency: 1
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