The phrase "and difficult to resolve" is correct and usable in written English.
It can be used to describe a situation, problem, or issue that is challenging to address or find a solution for.
Example: "The conflict between the two parties has become increasingly complex and difficult to resolve."
Alternatives: "and hard to settle" or "and challenging to fix".
But the problems in Mexico are deep-rooted and difficult to resolve, he said.
By contrast, when the market environment is poor, revolutions seem to be much more severe and difficult to resolve.
The experimental probing of different states of riboswitches is however time consuming, costly, and difficult to resolve without theoretical support.
Whenever a one-on-one conflict transforms into a group dispute, it becomes much more complicated, emotional, and difficult to resolve.
"New-account fraud takes the longest amount of time to detect, and it is the most costly and difficult to resolve," Ms. Kenney said.
Bew said the debate was fractious and difficult to resolve but there was some opportunity for progress, starting with small areas of agreement between the parties.
Discrimination, personal misfortune, and difficult to-resolve errors are terrible reasons to shut someone out of a job for which they are otherwise well-qualified.
But the big issues of the child not wanting treatment and the parents wanting them to have treatment are few and far between and very difficult to resolve, like – in cases like this.
Specifically, it discusses legal issues specifically relating to management of coastal resources, highlighting the conflicts that arise among the vast body of sectoral laws, and analyzing why those conflicts are so prevalent and so difficult to resolve.
But in few arenas is bad chemistry between them so complex and so difficult to resolve as when it occurs between doctor and patient.
Consistent with our previous results (Figure 2 and Table 1), the Nek4 and Nek11 clades are closely related to each other and thus difficult to resolve (Figure 7).
