The phrase "a long and active" is correct and usable in written English.
It can be used to describe a duration and a level of engagement or involvement in a particular activity or state.
Example: "After a long and active day of hiking, we finally reached the summit just before sunset."
Alternatives: "an extended and vigorous" or "a lengthy and dynamic".
She had a long and active life.
The United States also has a long and active history of interventions in other countries' politics.
Irving had a long and active career in the textile industry, serving as president of the Greige Goods Division of Reeves Brothers.
Andrew Cowper Lawson lived a long and active life, during which he contributed abundantly to geology and to the training of geologists.
He graduated from the US Naval Academy in 1931, attended Harvard Law School, and served in the Navy during WWII, before embarking on a long and active career in investments and philanthropy.
Like Earth, Venus has had a long and active geological history, with a continuing supply of volcanic gases for its atmosphere, and it has a strong gravitational field that can hold most gases.
He served in the New South Wales Parliament in 1943 49 (although expelled from the Labor Party in 1943), and then briefly in the federal Parliament, before settling into a very long and active retirement.
Tots ages 18 to 36 months, accompanied by a parent or caregiver, are invited to enjoy a morning of science and art exploration, sing-a-long time and active play.
Tots ages 18 to 36 months, accompanied by a parent or caregiver, are invited to enjoy a morning of science and art exploration, sing-a-long time and active play at Kidspace Museum, 480 N. Arroyo Blvd., Pasadena 91103.
Forest engineering in Spain has a long tradition and active presence in the engineering field.
In choosing Mr. Cheney, Mr. Bush turned to someone whose history with the Bush family is a long, rich and active one.
