Definition: not feeling well, or suffering from a disease Level: A2
他看起来很痛苦，需要马上去看医生。
He looks very ___ill and needs to see a doctor immediately.
她因为睡得太晚，第二天感觉特别不舒服。
She felt ___ill the next day because she stayed up too late.
我妹妹今天生病了，所以没去上学。
My sister is ___ill today, so she didn't go to school.
