"gain command" is not a standard phrase in written English, and it would not be easily understood.
It could, perhaps, be used as a metaphor or analogy in some contexts, but it would need to be clarified with additional wording or context. For example: "Jill worked hard in the position and quickly gained command of the skills involved."
Most closers struggle to gain command of their secondary pitches because they throw relatively few innings and cannot administer proper maintenance.
Wearing a blue shirt that featured a large golden-tongued, double-tailed lion borrowed from the Czech coat of arms, Stepanek came back from a 4-2 definithen the second set to eventually sweep through a tiebreaker and gain command of the match.
"The Panel is clear that WHO failed to engage proactively with high-level media and was unable to gain command over the narrative of the outbreak.
The latter's Wang Junjin also presses on to gain command and secure new financing at Okay, whose woes he maintains were self-inflicted: "If a company loses money every year, of course the bank will not lend you money".
Despite repeated attempts to gain command positions in the British Army or with the British East India Company, he saw no further military duty.
The British use of air power evolved during the war, from a reconnaissance force to a fighting force that attempted to gain command of the air above the trenches and carry out bombing raids on targets behind the line.
Most recently that has led to Pat Fili-Krushel gaining command of all of NBC's operations in news.
But Roberts gained command of his impressive arsenal, a fastball of 93 to 97 miles an hour and a split-fingered fastball, and after seizing a spot in the Baltimore rotation, he won his first four decisions this season.
"We would leave a certain group behind and they would take the various sections where they have the oil," he said, regarding a policy apparently meant to prevent terror groups such as Islamic State from gaining command of such a vital resource.
Such reflection is a crucial weapon in gaining command over the passions, as prudence often dictates we should.
Five years after gaining command of Soka Gakkai, he told a Japanese writer: "I am the king of Japan; I am its president; I am the master of its spiritual life; I am the supreme power who entirely directs its intellectual culture".
