Chronic HBV慢性乙型肝炎chronicadj.长期的；慢性的；惯常的chronic simple laryngitis慢性单纯性喉炎Chronic subdural hematona慢性硬膜下血肿chronic villous arthritis慢性绒毛增生性关节炎Chronic immune activation慢性免疫活化Chronic hemodialysis diet慢性血透析饮食chronic refractory anemia慢性顽固性贫血Chronic Renal Dysfunction慢性肾功能不全chronic pulmonary disease慢性肺病Chronic severehepatitis B慢性重型乙型肝炎Chronic virus B hepatitis慢性乙型病毒性肝炎

1. "A-bomb, H-bomb and nuclear-powered submarine"
   两弹一艇
2. It is spread by contact with patient or carrier.
   白喉可透过与病人或带菌者接触而传播。