退书：书商和出版社预先协议，退回卖不出的书。
Returns: Unsold stocks returned by a bookseller with the publisher's prior agreement.
一些较先进的印刷公司和出版社已逐步采用数码彩色付印前及印刷系统。
Some more sophisticated printing companies and publishers have already started using such equipment as digital colour pre-press and printing systems.
我不断地把自己的作品发给杂志社和出版社，但大多数时候都吃了闭门羹。
I kept sending my work to magazines and publishing houses, but I got mostly refusals.
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