U1E10 | chronic

Chronic【adj.】1. (of an illness) persisting for a long time or constantly recurring（疾病）慢性的，长期的He suffers from chronic back pain.他患有慢性背痛。● chronic diseasea disease that persists for a long time or constantly recurs慢性疾病 acute急性的，剧烈的Unlike chronic pain, acute pain is sudden and severe.与慢性疼痛不同，急性疼痛是突然而剧烈的。2. having a particular habit or attitude for a long time that is very difficult to cha...去小宇宙查看完整单集简介在小宇宙查看该单集文稿