No, the bridge should be given by an official bridger for the source language (Br. Portuguese in this case). The expert has to check the bridge with one of them anyway (Casper/Angelus/Thatha/Goncin/Lilian).
Efee, when you translate by yourself(without bridges) you don't need to make them for me. When I can't understand the source I always ask experts of the soruce language, for example Lilian.
But when you receive any bridge you should make a remark about it in the remark fields under your translation and paste it in the same place.
"True love is for the whole life"
Verus amor per vitam totam est.
or "Amor verus" (better order)...
perpetua - eternal
"per" is very needed, because without the word I can read your Latin sentence: