en_tn/ecc/08/14.md

useless vapor

"meaningless" or "futility". Things that happen but shouldn't. Such as good things happening to wicked people and bad things happening to good people.

something else that is done on the earth

AT: "something else that people do on the earth" (See: rc://en/ta/man/translate/figs-activepassive)

for all the days of his life that God has given him

AT: “for as long as God allows him to live” (See: rc://en/ta/man/translate/figs-idiom)