Studies in the sixties in bilingual people showed they had one which they preferred.
I've met a few BAs who were not particularly bilingual.
and translators who are, may not have degrees.
If you can have a telephone conversation in a foreign language you are doing very well indeed
[because there are no visual cues and because telephones do not transmit the high tones verywell which carry nuances]
and hahahaha I must end with a joke
Tramslators Polish lacks polish
Some President took a Polish translator on his state visit to Poland, who translated, "The president loves [coming to] Poland"
as
The President wishes to have carnal knowledge of Poland.
[You will have to substitute a word for carnal habits as This is a Family Site]. All the Polish correspondents (=hacks) jumped out of their seats when they heard this.....
and the translator took the first plane back to the good old US of A.
as reported in the Daily Telegraph ten or twenty years ago.