The phrase "certain circumstances" refers to specific situations or conditions that are mentioned or implied. It means that in those particular situations, certain actions, outcomes, or rules may apply or be necessary. Full definition
It remains to be seen whether the ethical obligations of lawyers will be extended to require encryption of email in certain circumstances in the future. (lawyerist.com)
If you wanted to customize your policy slightly, there will be opportunities to add riders which add protection for certain circumstances whilst increasing your premiums. (justburyme.com)
It can happen under certain circumstances where the trainee keeps pushing day in and day out for a longer period of time without the proper rest and recovery. (fitnessandpower.com)