热狗是可数名词.
Hot dog:热狗;
例如:I would say hot dogs on the state highway.
You must have sold a lot of hot dogs last night?
你昨晚一定卖了不少热狗是吧?
Have you tried the hot dogs? That's right.
你们试过吃热狗吗?那很不错。
Would you mind passing the lady one of the hot dogs?
你能给那个女士递个热狗过去么?