Even though it was getting dark, we decided to continue to the next village.

even 在这里是副词，用来加强语气，表示"即使"或"尽管"的意思。 though 是连词，表示"虽然"或"尽管"，用于引导让步状语从句。 even though 是一个固定搭配，表示"即使/尽管"，用来引导让步状语从句，语气比单独使用though更强。