"Eu sou especialista em vinho."

Translation: I am a wine expert.

[CheBoludo]

okay, why does "specialist IN wine" work here, but on the one about the woman being an insect specialist, we couldn't have "specialist IN insects"?

[Danmoller]

I'm not native english speaker, but I have a feeling "on insects" migh do it.

[Duomail]

It accepted I'm a specialist in wines.

[DSDragon]

It'd be less awkward to say "wine specialist" or "insect specialist." Or even better: "sommelier" or "entomologist."

[DSDragon]

Wine expert = sommelier

[t.winkler]

ou em português de Portugal: escanção

[ViBritannia]

Potential pick-up line right here. Vamos beber? Eu sou especialista em vinho.

[barbaratorrance]

why is the answer "a" and not "the" there is no indication to the correct answer

[ZuMako8_Momo]

Professions, in English, just require the indefinite article, whereas in Portuguese it is not required but understood. If the definite article is required in English, it is most certainly required in Portuguese.

[SiobhanWray]

Por que "connoisseur" não é aceito?

[BevJ63]

Could "I specialise in wine" be correct

[faruby]

No, rather "I am specialist in wine"