While this is a small improvement, consider adding hundreds (or thousands!) of books with all those authors.

虽然这只是一个小小的改进，但设想一下添加数百（或数千）本书及其作者的情形。

youdao

"This bill will allow multiple private companies to move forward with developing this capability, " he said, adding that tax money will be saved and "thousands of new high-tech jobs" will be created in those companies.

CNN: Congress approves $19 billion for NASA but layoffs loom