The phrase "keen memory" is grammatically correct and can be used in written English.
It means a strong or sharp ability to remember things. Example: "Sarah's keen memory allowed her to effortlessly recall the names of all her classmates from second grade, even though it had been over 10 years since she had last seen them."
The National Cartoonists Society also said that next year's Reuben Awards ceremony and conference — typically held during Memorial Day weekend — will be in Washington, D.C. REUBEN AWARDS: A keen memory about one past "outstanding" cartoonist.
Tenacity and a keen memory.
He has an especially keen memory.
Some of these remembrances, captured by his increasingly keen memory, have been dictated to an assistant.
Had a sharp mind, keen memory, and flashing steel grey eyes until the very end.
His masters, especially Alexander of Hales, recognized in him a student with a keen memory and unusual intelligence.
She has keen memories of the first big pro-independence rallies in Catalonia in 1977, soon after the death of Franco.
Readers with keen memories will recall a blast in this space three months ago at the proposed "Total Information Awareness" project, which the Pentagon proudly described as "a virtual, centralized grand database".
Florida's Levey, for instance, has shown that Northern Mockingbirds also develop keen memories of people who touch their nests.
When it comes to animals, the problem is compounded for two main reasons: First, it is very difficult to design and administer tests that pick up on overall smarts instead of specific skills, such as the keen memories of food-hoarding birds or the fine motor skills of chimpanzees that make tools for finding insects in trees.
Nevertheless, I have keen memories of the extensive negotiations that went on before people actually started "going out".
