The phrase "a continued high" is correct and usable in written English.
It can be used to describe a sustained level of something, often in contexts like performance, prices, or emotions.
Example: "The stock market has experienced a continued high over the past few months, attracting more investors."
Alternatives: "a sustained peak" or "an ongoing high".
But yesterday Digital said that it had experienced a continued high level of demand from European customers.
In tribal Pakistan, the initial front of US drone strikes, there was a steep rise in strikes in 2010 and a continued high rate in 2011, followed by a decline in 2012 and a steeper decline in 2013.
Factors influencing the strong demand for soybean futures in cluded a strengthening of the cash price for oil and meal and a continued high demand for the end products as well as beans.
Between 1970 and the mid-2000s the population of Paraguay increased from 2.4 million to more than 6 million as a result of a decreasing death rate and a continued high birth rate.
"Mr. Hoenig was concerned that a continued high level of monetary accommodation would increase the risks of future economic and financial imbalances and, over time, would cause an increase in long-term inflation expectations that could destabilize the economy," the statement said, summarizing his dissent.
Biofuels provide 1.8% of the world's transport fuel and recent estimates indicate a continued high growth.
A decline in locomotion was observed in both unmated mutant and unmated control females, however, a continued higher level of mobility in older mutant flies indicated slowed aging.
It says this is a "continuing high priority issue given the increasing rollout of cable in the South Pacific region".
Serial measurement of the biomarkers showed that for both bio-ADM and lactate, a normalization of concentration was associated with a decrease in mortality risk, while a continuing high concentration or increasing concentrations were associated with a high mortality risk.
He also noted that a continuing high level of government debt would reduce productivity growth and subject the nation to greater indebtedness to foreign countries as well as risks of economic shocks.
Among the Australian fauna, vertebrates are a very well known group, although there is a continuing high rate of discovery of new fish and shark species.
