The phrase "at least two speeches" is correct and usable in written English.
You can use it when specifying a minimum requirement for the number of speeches needed in a particular context, such as an event or assignment.
Example: "For the debate competition, each team must prepare at least two speeches to present."
Alternatives: "a minimum of two speeches" or "no fewer than two speeches".
Mrs. Clinton has made at least two speeches about Latin America in recent weeks, including one on Monday before a group of politically active Mexican-American leaders.
According to his presidential campaign office, Governor Bush has given at least two speeches on the subject -- on Sept. 15, 1995, to the Texas Medical Association and on June 2 , 1998 to the Texas Health Care Association.
Liddy has said in at least two speeches that the burglars monitored Wells' desk in the DNC's Watergate offices from a listening post across the street at the Howard Johnson hotel.
And paradoxically, the failure of effective regulation in the context of at least two speech contexts will tend to weaken free speech values in cyberspace.
Her successor Jonathan Evans has made at least four speeches since then.
In the closing days of the campaign, Obama gave at least three speeches criticizing the former President, who, ever vigilant of his legacy, defended himself at every stop.
The score was arrived at through textual analysis of at least four speeches per leader, enabling an assessment of their overall use of populist rhetoric.
The two also reported at least $7.7m or at least 39 speeches to big banks, including Goldman Sachs and UBS, with Ms Clinton, the Democratic 2016 front-runner, collecting at least $1.8m for at least eight speeches to big banks.
In the last six months Mr. Gore has given at least three speeches that commentators widely labeled "the most important of his career" (his convention acceptance, his address explaining why he was taking legal action in Florida and his concession).
For two months he was giving at least three speeches per week to local groups.
"There have been four stakeholder conferences since 2008, and at least three speeches in the European Parliament on Acta.
