复数： softcovers

Bob hope : the road well-traveled ( softcover ) ( applause books )

鲍勃霍普：沿着这条路经常旅行（平装）（鼓掌书籍）

And the cost of producing the hardcover is more than the softcover .

精装书的制作成本又高于平装书。

But it wasn 't just the softcover format that was revolutionary : de graff was pricing his pocket books at a mere 25 cents .

但它并不只是平装样式，而是一个革命：德格拉夫定价他的口袋书仅25美分。

Book buyers have been used to hardback books being the most expensive , with softcover versions being priced much less , while e-book versions are cheaper still .

买书的人们已经习惯了精装书价格最贵、平装书便宜很多，而电子图书更为廉价的状况。

However , with hard and softcover books , publishers must warehouse their inventory and there are costs associated with that .

不过，对于精装书和平装书，出版商还必须有库存的空间，并发生相关的费用。