Don't hesitate to make comments or Suggestions if you have any.

有意见尽管提好了。

《新英汉大辞典》

If you have any comments or Suggestions.

如果你有任何意见和建议。

youdao

Can you tell us your comments or Suggestions?

能告诉我们你的意见或建议吗？

youdao

If you have any comments or suggestions, or you want to complain about a headline then please use the form below.

BBC: links to other news sites

It is not hard to imagine that such organizational traits can easily reject third party's comments or suggestions, even if they are objective.

CNN: STORY HIGHLIGHTS

Any advice or mentoring-like comments and suggestions would be appreciated.

FORBES: Top 10 Tips For Young Aspiring Journalists