Ping TangPing Tang 35322 Gold badges66 silver badges1515 bronze badges one 1 "A single" draws much more attention to this precise function, although also suggesting that you could (or giving you the choice to) go over other attributes later on. To paraphrase, one particular will make the element "more Distinctive". https://vodemcasa.com/one-tv-p2p-plano-semestral