Translate the following English sentence to French:
"In my opinion, this is a very difficult subject, and one over which we will lament the passing of the Portuguese Presidency, for, at least on this point, it maintained a position which, if not crystal clear, was at least less negative."
Je pense que la question est très délicate et nous fera certainement regretter la présidence portugaise qui, sur ce point au moins, avait une attitude, si pas très claire, du moins plus positive.