advise 建議(動詞)
"I advise you to buy a good dictionary."
advice 建議(不可數名詞) 所以要用 some advice 或 a piece of advice.
"Let me give you some advice." "She gave me a very useful piece of advice: to buy a good dictionary."
很多人不喜歡不請自來的建議和意見,所以為了避免表錯情給人以多事的印象,你可以用以下說法:
"You could always..." 你其實可以...
"Have you considered..." 你考慮過...
"Perhaps we could..." 也許我們可以...
"Do you think it's a good idea to..." 你覺得...好不好呢?