advice 和 suggestion 均可表示“建议”，其区别是：
1、advice 指的是一种具有较强实用性和可操作性“建议”（通常译为“劝告”“忠告”），它是针对某人的某一具体情况（或特定情况）所给出的最佳行动方案。《牛津高阶英语词典》（第6版）对它的解释是：an opinion or a suggestion about what sb should do in a particular situation. 《迈克米伦高阶英语词典》对它的解释是：an opinion that someone gives you about the best thing to do in a particular situation.
请注意体会以下例句：
The lawyer gave me some helpful advice.
律师给我提供了一些有用的建议。
Ask for advice at your local family planning clinic.
到当地的计划生育门诊部去咨询一下。
He refused to sign the contract on the advice of his lawyer.
根据律师的忠告，他拒绝在合同上签字。
We don't know what to do, so we will seek our father's advice.
我们不知道该怎么办，因此我们要征求父亲的建议。
He is financially independent of his parents but still asks for their advice.
在经济上他已经自立，可他仍然征求父母的意见。
Invariably, her advice is excellent; we always do what she says.
她的建议总是很好，我们总是照她说的去做。
Local firefighters will help colleagues in Eastern Europe by providing advice and equipment.
当地的消防队员将会提供建议和设备来帮助东欧的同行们。
2、suggestion 仅是提出一个供人参考的想法或计算。
解释：
an idea or a plan that you mention for sb else to think about.
an idea or plan that you offer for someone to consider.
请注意体会以下例句：
Your suggestion merits serious consideration.
你的建议值得认真考虑。
Neither suggestion was taken up by the assembly.
两个建议未得到会议的采纳。
I integrated your suggestion with my plan.
我把你的建议和我的计划融合在一起了。
They rejected my suggestion because it was too expensive.
他们拒绝了我的建议，因为费用过高。
I'll agree to your suggestion if you lower the price.
如果你们降低价钱，我就同意你们的建议。
The suggestion that shops should open on Sundays led to a heated discussion.
关于商店星期日也应该营业的提议，引起了激烈的争论。
I suggested that she should look for a lob but this suggestion did not go down at all well.
我建议她去找个工作，可是这个主意她根本听不进。
The older members of the committee are inclined to veto any suggestions put forward by the younger ones.
委员会的老成员们趋向于否决年轻成员们提出的任何建议。
3、从语法方面看，它们也有区别：
比如从可数性上看：adivce 表示“建议”时是一个典型的不可数名词，但 suggestion 表示提出建议的行为时是不可数的，但它表示所提议或建议的内容时则是可数的。
又如从搭配上看：表示“提建议”advice 通常与动词 give (sb) , offer (sb) , pass on, provide (sb with) 等搭配，表示“给（某人）提出忠告”“（给某人）提出建议”等；而 suggestion 则通常与动词 come up with, give sb, make, offer, put forward 等搭配。注意它们有些搭配是相同的，但有些搭配是不一样的，比如我们可以说 make a suggestion，但通常就不说 make an advice。
