en_tn/gen/03/07.md

The eyes of both of them were opened

"Then their eyes opened" or "They became aware" or "They understood." See how you translated "your eyes will be opened" in Genesis 3:5.

sewed

put together, probably using vines as thread

fig leaves

If people do not know what fig leaves are like, this can be translated as "large leaves from a fig tree" or simply "large leaves."

made coverings for themselves

They did this because they were ashamed. This implicit information can be made explicit if needed as in the UDB. AT: "clothed themselves with them because they were ashamed" (See: rc://en/ta/man/translate/figs-explicit)