a good advice可数吗

　　This is a good piece of advice for us to follow.

　　这是一条我们应该接受的好建议。

　　Son, let me give you a good piece of advice.

　　孩子，让我给你一个很好的.忠告。

　　He gave me a lot of good advice.

　　他给我许多很好的建议。

　　That sounds like a lot of good advice; hope I can remember it all.

　　这话益处不小，但愿我都能记住。

　　Learn through practice@ is a piece of good advice for those who are learning a new language.

　　从实践中学习是一条对于初学者的很好的建议。