en_tn/mrk/12/21.md

the second ... the third

These numbers refer to each of the brothers and can be expressed as such. Alternate translation: "the second brother ... the third brother" (See: rc://en/ta/man/translate/figs-ellipsis)

the second took her

"the second married her." Here marrying a woman is spoken of as "taking" her.

the third likewise

It may be helpful to explain what "likewise" means. Alternate translation: "the third brother married her as his other bothers did, and he also died leaving no children" (See: rc://en/ta/man/translate/figs-explicit)

seed

This is a euphemism for a son. See how you translated this in verse 19. (See: rc://en/ta/man/translate/figs-euphemism)