The phrase "retain it in" is correct and usable in written English.
It is usually used to mean that someone should remember something or keep it in their memory. For example: "Always remember to stay positive - retain it in your mind."
Without such evidence, I would retain it in its present form.
If you elect to engage in a live video chat with a representative of the Guardian, the Guardian will record the video chat and retain it in its records.
Wackenhut, the nation's second-largest provider of security guards and related services, has turned away all but a handful of companies that have sought to retain it in recent weeks, and it has converted its 25 sales representatives into consultants.
In such a case, we feel it is best to retain it in the monotypic genus Kaniska, in order to highlight its "oddity" and long history of independent evolution.
The rating means that "every possible effort should be made to raise funds to retain it in the country".
And a thousand times rather be torn to pieces than retain it in me or bury it.
Furthermore, SHuffle cells express a version of the periplasmic disulphide bond isomerase DsbC that lacks its signal sequence, retaining it in the cytoplasm.
Critical cysteine residues in the KEAP1 protein are essential for its ability to inactivate Nrf2 by retaining it in the cytosol.
Fidesz, founded in 1988, secured a supermajority in the Hungarian parliament after its landslide victory in the 2010 elections, and retained it in 2014 and in 2018.
The first was held in Oxford in 2012 and USA took the title before retaining it in 2014.
Mr. DiFrancesco called the tax credit "a neat idea," but did not commit to retaining it in the budget.
