The phrase "a key purpose in" is correct and usable in written English.
It can be used to indicate an important objective or goal within a specific context or activity.
Example: "A key purpose in this research is to understand the impact of climate change on biodiversity."
Alternatives: "a primary aim in" or "a main objective in".
In another development, secretary of state Hillary Rodham Clinton told Congress today that local job creation is a key purpose of the $980m£669m9m) in extra money the state department is requesting for its work in Afghanistan.
In Korea, similarly, a key purpose of developing a new university entrance examination in Korea the National English Ability Test (NEAT was claimed to be "to activate the teaching of speaking and writing of English at schools, which has not actually been conducted despite its compelling necessity" (Lee, 2012, p. 30).
We noted at the time the complaint was filed that the evidence presented was sketchy, more Alex Jones than "Serial". But the lawsuit served a key purpose — summarizing the case against Trump in a way that would probably appeal to the party's base.
"They're hugely important to us as they fit a key purpose - to develop Bristol players to play in Bristol fashion," said coach Liam Middleton.
Those of us in the field all agree that a key purpose of an MBA - or any business qualification - is to learn to run companies effectively.
A key purpose of the insider-trading prosecutions is deterrence.
"We will hold firm to our key purpose in this government: the Liberal Democrats are building a stronger economy, in a fairer society, enabling every person to get on in life".
"What I can tell you is that, whatever 2013 throws at us, the Liberal Democrats will continue to anchor this coalition in the centre ground and we will hold firm to our key purpose in this government".
The project's key purpose in Tajikistan is to boost the effectiveness and quality of the school nutrition program through the creation of school-based plots, produce from which will be used in the cafeteria in cooking tasty and nutritious breakfasts, lunches, and dinners.
Since teachers have a key role in society as educators, the purpose of this study was to find out the knowledge, attitude, and practice towards epilepsy among school teachers.
