The phrase "understand the key" is grammatically correct and can be used in written English
It means to comprehend or have a clear understanding of something important or essential. Example: In order to excel in this job, it is crucial to understand the key concepts and strategies in the industry.
In the questions, you listen to make sure you understand the key issues.
You must show that you understand the key issues, and that you appreciate the complexities of the problem.
Ultimately, the Congressional report concluded, the contractors revealed enough information for antimissile officials to "understand the key results and limitations".
And it is in that Prieto winner that one can begin to understand the key to Sociedad's success.
At key stage 3, the curriculum states that pupils should be able to understand the key processes in physical geography relating to plate tectonics.
Its tone, familiar from science fiction, echoes the purifying language of purges and revolutions: "We must understand the key generative structure of bad government.
At this tempo, we don't really understand the key legal issues — why the police and the courts, for instance, are powerless to move against the criminals.
A different grant applicant, he said, had proposed a malaria test using hemozoin, which helped him better understand the key role the crystal plays in malaria.
It speaks highly to the motivation and commitment of these brave individuals who understand the key role of postsecondary education in achieving a successful career.
He made me understand the key to happiness is your work, your contribution.
Correlation tables were used to understand the key material parameter of PAG governing concrete properties.
