The phrase "a fairly good knowledge" is correct and usable in written English.
It can be used when describing someone's level of understanding or familiarity with a subject, indicating that it is above average but not expert.
Example: "She has a fairly good knowledge of French, which helps her communicate effectively during her travels."
Alternatives: "a reasonably good understanding" or "a solid grasp of".
We have a fairly good knowledge of how we are feeling, but a psychologist's job is to know why we are feeling it.
Our analysis of the household survey results indicate that across the four cities and the different socio-economic neighbourhoods, households have a fairly good knowledge of the different types of security services provided by PSCs.
Interestingly, a recent Hong Kong study reported a generally negative attitude towards the mentally ill despite a fairly good knowledge of mental illness among the respondents [ 19].
Apart from gender differences, generally a high proportion of patients had an incomprehensive knowledge of TB symptoms, having a fairly good knowledge on only a few symptoms like cough and fever.
The study also established that most men in the community had a fairly good knowledge of AMC and its association with HIV acquisition, despite some misconceptions, and suggested that intention to undergo AMC was associated with social factors.
ADL: activities of daily living IADL: instrumental activities of daily living Eight out of nine health care providers had a fairly good knowledge of stroke and seven of them had more than nine years of experience with a stroke clientele.
The majority believed that the efficacy of generic medicines was sufficient (34%%) or good (45 %), and 37 and 33%% of them declared themselves to have a sufficient or fairly good knowledge of generic medicines, respectively.
That, plus my fairly good knowledge of Soho's backstreets from a misspent adolescence, was enough to secure second place.
We find that participants show fairly good knowledge of the basic mechanics of the plan, but are unable to differentiate among various investment options.
In Township B Hospital, doctors and health workers had fairly good knowledge on AFP surveillance.
Patients had fairly good knowledge on diabetes and its general issues, followed by knowledge on medications, hypertension and hyperlipidemia.
