In WPS, the default is "justified on both ends", that is, if the right side of the text is not aligned, it will automatically increase or decrease the spacing between words in the line to align the right side. When copying and pasting into foxmail, these formats are not copied.

Foxmail has never used it. By default, it may be left-aligned. See if the two ends are aligned, just select it.

It is recommended to arrange the text in WPS and send the WPS file as an attachment.