en_tn/pro/30/15.md

The leech has two daughters

This is an example of something that always wants more. Alternate translation: "Greed has two daughters" (See: rc://en/ta/man/translate/figs-metaphor)

leech

a type of worm that attaches itself to the skin and sucks blood

"Give and give" they cry

Another possible meaning is "and they are both named Give Me."

There are three things that are never satisfied, four that never say, "Enough"

This use of the numbers "three" and "four" together here is likely a poetic device. Alternate translation: "There are four things that are never satisfied, who never say, 'Enough'" (See: rc://en/ta/man/translate/writing-poetry)

are never satisfied

This can be stated positively. Alternate translation: "always want more" (See: rc://en/ta/man/translate/figs-litotes)