Any suggestion for the main course?

对于主菜有什么建议呢？

It is a very good suggestion for me.

这个建议对我来说很有用。

A: Any Suggestion for the main Course?

对于主菜有什么建议呢？

A good suggestion for you.

给你一条好建议。

Offer a suggestion for Improvement.

然后给出一个改善的建议；