soft drink可数还是不可数

　　They have gained as carbonated soft drink sales have declined.

　　随着碳酸软饮料销量的下降，他们已经赢得了市场。

　　The tea is sweet but it has less sugar than a typical soft drink.

　　这种茶是甜味的，但它所含的糖分却比一般的软饮料要少。

　　The soft drink giants seems to just be Tweeting for the fun of it.

　　这个软饮料巨人似乎只是因为好玩才发微的。