'focuses extensively' is an acceptable phrase in written English and can be used when referring to a topic or matter which is studied intensively.
For example: "The project focuses extensively on the impact of climate change on the environment."
The report focuses extensively on the impact of "bracket creep", where inflation pushes people's income into higher tax brackets.
The documentary focuses extensively on Mario Travaglio, a young, slim reporter who is introduced by the narrator as "one of Italy's most respected investigative reporters".
But the account of World War II, which focuses extensively on the Pacific because of the centrality of the Marines' involvement, is also a story of strategic lessons learned, in which air, land and water forces became tautly coordinated in fighting difficult battles against entrenched Japanese soldiers.
My doctoral research at Oxford focuses extensively on the changing foundations of popular legitimacy for Putin's government.
Reich's work focuses extensively on philanthropy, but much of his research touches on the ethical implications of private giving in the education world.
Because Sinatra reemerged when the long-playing album was invented in the early 1950s, he became a "novelist" instead of a "short story writer," says veteran disc jockey Jonathan Schwartz, whose long-running radio show on New York's WQEW focuses extensively on the artist.
"To combat terror the government has focused extensively on domestic legislation.
Now I want to shift to a very new study that focused extensively on volcanoes.
"The conversation focused extensively on the Defense Department, the job, what needed to be done there," Mr. Cheney said.
In recent years, public health experts have focused extensively on overdose deaths from heroin and prescription painkillers, which have risen rapidly since the early 2000s.
His father, Richard Morse, is a retired dean of Latin American studies at Yale whose career has focused extensively on this country's political culture.
