The phrase "a certain role and" is correct and usable in written English.
It can be used when discussing specific responsibilities or functions that someone may have in a particular context or situation.
Example: "In this project, each team member will take on a certain role and contribute to the overall success of our goals."
Alternatives: "a specific role and" or "a particular role and".
If employees are rewarded individually, Dr. Schotter argues, they can maximize their rewards by specializing in a certain role and carving a niche in the organization.
"Fusaro is picked to do a certain role and we believe there's an opportunity for him to do it," said Johnson.
Each user is assigned a certain role and can only access the part of data for which he has authorization according to a predefined role and the Access Control Policy.
One could say that in the monomodal, unreduplicated case, we have a single connective playing a certain role and we can refer to it in that context as the connective playing the role in question, while conceding, as we learn from the reduplicated case, that this is a role that can be played simultaneously (i.e. in a single logic) by several non-equivalent connectives.
Some of these revisions were for length, and some for convenience, as when a different actor played a certain role and was unable to perform a specialty piece written for the role's creator.
I think he has a sort of mystical approach in a way, where he believes that a certain type of person is going to fill a certain role and something that comes from them personally but also something that follows his minimalist attitude.
Calpain 3 has a certain role in direct and indirect regulation of conventional calpains by proteolytic degradation of calpains and calpastatin respectively [2].
But I felt after the result [on Sunday] and tactically, I needed him to carry out a certain role which he knew and did perfectly as well".
And it plays a certain role in revealing transition preference and SNP frequency of cotton genes.
Thus, it is highly probable that grease or its components played a certain role in foam formation and stabilization.
The obtained results show that impulses play a certain role in the existence and exponential stability of anti-periodic solutions of cellular neural networks.
