平装的英文：
paper-cover; paperbound

参考例句：

Planer: Block of wood used as a pad for tapping lettepress type into place on the surface of the stone.
平版木:垫着敲打，推平装版台上的活版铅的木块。

Bound in paper;paperback.
纸面装订的;平装的

There are paperback mysteries on the bookshelf.
书架上有平装的神秘小说。

paper是什么意思：
n. 纸；报纸；文件；论文；试卷
v. 贴糊墙纸；用纸覆盖；用纸包装
adj. 纸制的

This is the final paper.
这是最后一版的报纸。

The paper is sexpartite.
这篇论文由六部分组成。

a slip of paper
一张纸条

cover是什么意思：
v. 遮盖；掩饰；包含；采访；给...保险；顶替
n.. 遮盖物；封面；掩护；保险；借口；餐具

Cover as if with a shroud.
仿佛用覆盖物掩饰着。

To be covered with or as if with fog.
为雾笼罩被或好象被烟雾掩盖

Covering: The fixing of a book cover to the spine and end papers .
上书皮:把书皮粘贴于书和纸上。

paperbound是什么意思：
n. 平装书