Sentence examples for are difficult to retain from inspiring English sources

Seasoned switchers who arrive from price-comparison sites are difficult to retain.

Due to their relationship with the host, those genes that are not necessary for their survival are difficult to retain.

This means that multiply phosphorylated peptides, another large subgroup, are difficult to retain or are even lost.

It is important to consider that the factors associated with women who were not retained in the cohort (young maternal age, low education and income, poor physical health, being single, and smoking) are similar to the characteristics of women who are difficult to retain in studies and in longitudinal research [ 55].

This is a national issue, these are high-pressure jobs and it is difficult to retain people in certain positions".

He said it would be difficult to retain his title, especially with the elimination of the Vail Pass time trial.

But another dropped shot for Rose, who misses a short one at 14. He's +2, and goodness me but it's difficult to retain a major championship.

Now, art is so adept at absorbing any whiff of mischief that it is difficult to retain any meaningful vestige of the street.

According to Henriques, one of the most surprising trends is that, since 2011, the biggest area of growth has been among teen-age girls a demographic that has long been difficult to retain.

It is difficult to retain one's composure at a time when false leads, wild Internet gossip and outright hoaxes -- as well as genuine intelligence warnings from the government -- make it seem as if the nation is under incessant attack.

That, despite a multimedia, 24-hour news cycle, it's difficult to retain much in the way of substance; we are fuelling up on too much content of too little worth.