Finding and containing the last remaining cases may be the most difficult stage of the eradication process as cases usually occur in remote often inaccessible rural areas.

发现并且控制最后的剩余病例可能是疾病消灭过程中最为困难的阶段，这是由于这类病例通常出现在偏远并且往往难以进入的农村地区。

youdao

It provides vital assistance for hundreds of thousands of victims of conflict and natural disasters in remote,inaccessible areas.

VOA: standard.2009.08.02

Many schools are situated in remote and inaccessible areas, people often do not know the exact age of their children as there are no birth certificate etc.

UNESCO: EDUCATION