Vertaling van "were serious about this then let us pass a motion here tonight " (Engels → Frans) :

If the government were serious about this then let us pass a motion here tonight that would actually do it.
Si le gouvernement prend cette question au sérieux, alors adoptons une motion en ce sens, ici, ce soir.

If this motion were to pass, and then there is the big if, and if the government really got serious about getting something through on this, the firefighters would still have to win the extra pension benefits through their collective bargaining benefits negotiating process.
Si cette motion devait être adoptée, et surtout si le gouvernement tient réellement à réaliser quelque chose dans ce domaine, les pompiers devront toujours obtenir de meilleures prestations de retraite dans le cadre du processus de négociation des conventions collectives.