chronic fatigue syndrome
noun [ U ] uk/ˌkrɒn.ɪk fəˈtiːɡ ˌsɪn.drəʊm/ us/ˌkrɑː.nɪk fəˈtiːɡ ˌsɪn.droʊm/ (UK also ME); (abbreviation CFS)
慢性疲劳综合征
an illness, sometimes lasting for several years, in which a person's muscles and joints (= places where two bones are connected) hurt and they are generally very tired