Figure 1 The main reason for this problem is that the default alignment of document paragraphs is "baseline alignment", that is, the lower edge of the text is aligned. There is no problem in the text with uniform font size, but if the font size of the text is different, or the formula with different font size is inserted, this problem is highlighted.

To solve this problem and make the formula and text coexist harmoniously, just change the vertical alignment of the paragraph where the formula is located to "center alignment".

First, select the paragraph where the formula is located, select Format-Paragraph from the menu, select Center Alignment in the text alignment options on the Line Break and Pagination tab, and press OK to exit.

Formulas and words can be "in harmony" (Figure 2).