例句與造句

1. A titanium card, in the eyes of issuers is the next logical step.
2. Gold cards, platinum cards, titanium cards.
3. For reaching the ten million mile number, he was given the only United Titanium Card and his name was placed on the side of a United Boeing 747-400.
4. It's difficult to find titanium card in a sentence. 用titanium card造句挺難的