The phrase "across two weeks" is correct and usable in written English.
It can be used to indicate a duration or span of time that covers a period of two weeks.
Example: "The project will be completed across two weeks, with various tasks scheduled each day."
Alternatives: "over a period of two weeks" or "during the span of two weeks".
Maintenance probes demonstrated that labels in each condition were maintained across two weeks.
Across two weeks of Senate debate, the sides will be vying over the definition of reform.
Riccardo Chailly's Beethoven cycle with the Leipzig Gewandhaus Orchestra, packed into five concerts spread across two weeks, is the musical highlight of the Barbican's autumn.
Under the rules set for the Senate debate, proposed amendments to the McCain-Feingold bill will be voted on every three hours across two weeks.
Once, he stretched an assault on El Capitan across two weeks, including three days spent pausing to consider some half-forgotten existential puzzle.
Together, we're focusing on delivering my vision of a national campaign of eight events in seven locations across two weeks in September 2016: iamsocialwork's SUPER:vision Tour.
Across five weeks, participants created and took part in non-standard polls relating to events and other spontaneous group decisions.
The live show, which will air across four weeks on BBC1, will also feature 80 "wanted faces" who the police are trying to track down.
Twenty-eight matches across five weeks, played by 14 teams in 21 locations, represent an opportunity to increase participation and draw in new audiences.
Because the N.B.A. All-Star Game and the Grammy Awards are taking over Staples Center, the Kings (30-22-3) are on the road for 10 games across three weeks.
In a single-center, double-masked, split-mouth designed, clinical split-mouth designede authors assessed the clinical responses of teeth with dentin hypersensitivity (DH) aftrialreatheg the teeth with one of three desensitizing authorsassessedour weeks.
