It’s worth remembering, however, that though a clean copy fresh off a printer may look terrible, it will read only as well as the thinking and writing that have gone into it.

a clean copy fresh off中clean是干净的意思，copy是名词，“复印件”的意思，fresh是副词“刚刚”的意思，off 在这里是介词，从…出来，脱离…的意思，

所以a clean copy fresh off a printer 可以翻

译为一个刚刚从打印机里打印出来的文件。

这句话中It’s worth remembering，sth be worth doing 意为“某事值得被做”，在形式上是主动，但在语义上是被动含义，所以语法上将这种用法称为“主动变被动”。

例句: This experiment is worth

carrying on. 这个实验值得一做。

拓展: be worthy of being sth/ to be done也可表示“做……有意义”，但是没有主动变被动的用法。

it will read only as well as the thinking and writing that have gone into it.这句话中it 指的是copy

It will read怎么理解呢？可以看一下下面read的英文释义：

If something reads well or badly etc, it has been written well or badly.

比如：I think this report read well. 我认为这份报告写得很好。

only as well as the thinking and writing that have gone into it. 怎么理解呢？

这句话中only as well as意为和…一样好，as 是副词，修饰well, 第二个as是介词和…一样。

译文：然而，值得记住的是，刚从打印机上打印出来的文本虽然外表上看上去非常好，但是读起来好不好取决于其思想和内容。