The phrase "acknowledged serious problems" is correct and usable in written English.
You can use it when discussing issues that have been recognized or accepted as significant in a particular context, such as a report or analysis.
Example: "The committee acknowledged serious problems in the current policy that need to be addressed immediately."
Alternatives: "recognized significant issues" or "admitted critical challenges."
And while China has long insisted that 99percentt of the country's exports to the United States, Europe and Japan are safe, the government has at times acknowledged serious problems in product safety.
It also capped a turbulent year for the league, when it shrank to six teams, struggled to draw fans, acknowledged serious problems of income inequality and feuded openly with the renegade owner of its south Florida franchise, who was accused of everything from flouting league rules to bullying his players.
China's minister of labor and social security, Zhang Zuoji, acknowledged serious problems in the workplace, listing as top priorities the creation of more jobs and the strengthening of a new pension plan, unemployment insurance and other systems that are essential to repair the tattered Socialist safety net.
President Bush acknowledged serious problems in both Anbar and Baghdad yesterday, revealing that U.S. and Iraqi forces are constructing an earthen berm around the capital city of 5 million people and reinforcing checkpoints to try to stop the inflow of insurgent bombs.
C1 Overhaul at Automaker DaimlerChrysler, acknowledging serious problems at Chrysler, promised a major shake-up that began with the ouster of its American president, James P. Holden.
Instead American business lobbies have consistently done everything they can to avoid acknowledging serious problems and to prevent government action to solve them.
But at an April 17 meeting with members of an affiliate charity, the United Way in Alexandria, Va., Mr. Buzzelli acknowledged serious, chronic problems, Mrs. Kloch and others who attended said.
Although it has acknowledged serious accounting problems, Tyco, which has about $40 billion in annual sales, does not fall into that category.
In 1998, Vest forthrightly acknowledged serious gender-equity problems cited by senior women faculty in the School of Science; he then supported corrective measures to address longstanding imbalances.
It acknowledged "serious design flaws," a "neglect of safety management," and problems in bidding and testing.
But he acknowledged that serious problems remained beyond his control.
