adults 是不可数名词

错，是可数名词，中文意思是n. 成年人（adult 的复数形式）

Others supported his decision, they said they were bored of noisy children in restaurants and now they could finally have a place for adults only.其他人支持他的决定，他们说他们已经厌倦了在餐馆吵闹的孩子，现在他们终于可以有一个只提供给成年人的地方了。