The phrase "a very significant effort" is correct and usable in written English.
You can use it to emphasize the importance or magnitude of the effort being discussed in various contexts, such as projects, tasks, or initiatives.
Example: "The team put in a very significant effort to ensure the project's success, working long hours and collaborating closely."
Alternatives: "a considerable effort" or "a substantial effort."
From this we would suggest that these airports are making a very significant effort to engage with their customers.
There also has to be a very significant effort of education, and philosophically we have to get all of the athletes to understand we are in business to protect the clean athletes".
Thirdly, a very significant effort is now underway to ramp up multi-hazard early warning systems, especially in low-income countries and small island developing states.
Thus, we are enthusiastic about future analyses stemming from the observations of this manuscript, but believe that garnered information as proposed in this critique would not change the basic result, and obtaining such data would require a very significant effort beyond the scope of the current study.
Defense Minister Hervé Morin told the newspaper Le Figaro that France had believed for a long time that "opening the door to compensation would pose a threat to the very significant efforts made by France to have a credible nuclear deterrent".
As the Carnegie Foundation's Nathan Brown, one of the most perceptive foreign analysts of Palestinian affairs, argued in November (pdf), there needs to be "a very significant international effort to push for Palestinian unity".
They are hoping to make up some of those lost sales in the coming months, but Mr. Carter, while promising a "very significant marketing effort" in the fourth quarter to draw shoppers back in, acknowledged that Toyota would inevitably sell fewer vehicles this year than last.
Despite very significant efforts by the pharmaceutical industry to develop drugs, with over 50 small-molecule drugs directed at the family entering clinical development, only two compounds have reached the market: maraviroc (CCR5) for HIV infection and plerixafor (CXCR4) for stem-cell mobilization4.
A very significant part of this effort has been directly related to the identification of model parameters [ 2, 45- 47].
As part of the LRA's core command, his surrender is a very significant step in the efforts to bring a final end to the LRA".
It has attracted widespread backers including the likes of Claire Perry MP, who hailed the system as: "A very significant step forward in our efforts to make internet access safer".
