The phrase 'difficult to rely on' is correct and usable in written English.
It is used to indicate that something is not dependable or trustworthy. For example: "The company has been known to have unreliable customer service, making it difficult to rely on."
Today's educational environment has made it more difficult to rely on the Halstedian model of "see one, do one, teach one" in gynecologic surgical training.
However, we note that surveys carried out under current conditions are difficult to rely on due to the fact that they are held under conditions of major fluidity.
Many banks are now "in countries where the political situation is not stable, and it is difficult to rely on refrigeration," Dr. Swennen said.
Housing costs tend to be higher in the suburbs, Ms. King said, and it can be difficult to rely on the smaller mass transit system.
In an ideal world, Randolph would prefer assigning regular roles to Guillermo Mota, Pedro Feliciano, Scott Schoeneweis and Aaron Heilman, but their inconsistency has made it difficult to rely on them in the same situation all the time.
According to Dora Wright, the production manager, the sailors were "little trouble", and gave good performances "when sober", but drink and the monotony of screen acting meant it was difficult to rely on them.
The GOP nominee said the grueling campaign would be even more difficult without having someone to rely on, someone without whom a candidate could not go on another day: "I have my wife, Ann; he has Bill Clinton".
Except for anxiety hyperventilation, it is difficult to rely solely on ABG to identify a specific clinical syndrome.
Patients who were extremely poor and suffered from insufficient food at the initiation of ART might more easily receive such assistance compared with patients who were not so poor that they ever experienced food insufficiency at the time, although it is difficult to rely only on such explanation to account for everything since some donors have suspended their assistance in Mumbwa.
Unfortunately, self-control is a difficult skill to rely on.
Needless to say, these are difficult things to rely on in academia.. "I guess the key word would be 'highly multisectoral,' if you want to get really geeky," Boas said with a laugh.
