According to Song Xiaosi, 1 page A4, the spacing between single lines is about 1300 words. 1.5 times is 800 words. 1.25 times should be 1 100.

So 100 page can print 40,000 words.

The key point is that the school still depends on the number of words, and there will be requirements for the format of the paper. So I want to use line spacing to supplement the number of words. Wishful thinking.