"Powinien sprzedawać komputery, jest w tym dobry."

Translation: He should sell computers, he is good at it.

[WiktorWawrzynski]

Sounded like a question

[JanKLinde]

Unfortunately, it's always like this when the female voice says "dobry".

[hogyndrwg]

is the actor necessarily masculine? she should was not accepted, just wondering!

[immery]

she/it should = (ona) powinna.

on powinien-ona powinna- ono powinno

https://pl.wiktionary.org/wiki/powinien

[NaomiNorth]

Are comma splices like this correct in Polish?

[CelioFM]

Why do the actors have to talk too fast or too slow?

[Ronaldo8000]

What's the "w" for, as in jest w tym dobry.?

[JerryMcCarthy99]

In this case, it renders the "at" in "he is good at it".

[Cromarie]

"powinien sprzedawać komputery, on jest w tym dobry" ; this was marked as wrong, why can't there be "on"?

[JerryMcCarthy99]

"On" is allowed before both (or either) "powinien" or "jest". However, if you made some error in your typing, then the correct answer that Duo will show you (from the top of the list of correct answers) is without any "on".

That said, "on" isn't really necessary, as both "powinien" and "dobry" define the grammatical gender of the person involved.

[Cromarie]

thank you :) It must have been a typo..