microsurgery
noun [ U ] uk/ˌmaɪ.krəʊˈsɜː.dʒər.i/ us/ˌmaɪ.kroʊˈsɝː.dʒər.i/
显微手术
operations on very small areas of a body, for example nerve fibres (= structures like threads) or the small tubes that carry blood
She underwent microsurgery to re-attach her severed fingers. 她接受了显微手术，将切断的手指重新接合。