illness可数吗

illness可数吗 have an illness对不对?illness可数吗? illness是可数名词吗 illness可数吗?The babies often die from illness加s吗? illness是可数还是不可数? illness是可数还是不可数 illness是可数n.还是不可数n. illness什么意思是可数名词 illness是可数名词还不可数名词? illness是可数名词,那为什么linda,tell me more about your illness .不是il illness是可数还是不可数?She is a scary woman, heart illness,heart trouble,heart problem三者有区别吗?