suggest和advise都是动词，不存在可不可数，若变名词的话，advise-advice，advice是不可数名词, suggest-suggestion，suggestion是可数名词。

suggest：v.建议;提议;推荐;举荐;使想到；

advise：v.劝告;忠告;建议;出主意;提出建议

扩展资料

A recent poll suggests some surprising changes in public opinion.

最近的调查反映民意有了出人意表的变化。

Can you suggest how I might contact him?

我怎么才能联系上他，你能出个主意吗？

Please advise us of any change of address.

如地址有变，敬请告知。

Your lawyer can advise you whether to take any action.

你的律师可以告诉你是否起诉。

'Get there early,' she advised.

“早点儿到那里。”她嘱咐说。