ill ; sick两者都可表示“有病的”:作定语时通常用 sick;作表语时可用 ill(英) 或 sick (美)。如:a sick man 病人 be ill [sick] 生病表示“病人”,通常用 the sick (相当于名词 ,具有复数意义),而不用 the ill。如:They have come to see the sick. 他们已来看望过病人。The sick were allowed to pass free. 病人可以免费通过。短语:sick pay 病假津贴 sick leave 病假