He gave me some very sound advice.

他给了我一些非常合理的忠告。

They are trained nutritionists who can give sound advice on diets.

他们是训练有素的营养师，能提供有关饮食的可靠建议。

Let us heed that sound advice.

我们应留意这中肯的忠告。

I think this is sound advice.

我认为这是中肯的意见。

I acted on her sound advice.

我按她的忠告去做了。