to surrender to the police or authorities
警察や当局に降伏する (keisatsu ya tōkyoku ni kōfuku suru)
"The thief gave himself up to the police after two days."
"泥棒は二日後に警察に自首した。" (Dorobō wa futsuka-go ni **keisatsu ni jishu shita**.)
to destroy relationships between allied groups or nations
to make something or someone different or distinctive
to divide something into smaller parts
to regain emotional or mental strength after a setback
to not be progressing as quickly as planned
to withdraw from an argument or position to avoid conflict