en_tn/rev/16/12.md

the Euphrates, and its water was dried up

AT: "the Euphrates and caused the water to dry up" (See: rc://en/ta/man/translate/figs-activepassive)

looked like frogs

A frog is a small animal that lives near water. Jews considered them unclean animals.

dragon

See how you translated this in Revelation 12:3.