R-4：respond to 有反应
A:You seem to be unhappy. What happened?
A:你看上去并不开心，怎么了？
B:My mother is ill in the hospital.
B:我妈妈生病住院了。
A:What does the doctor say?
A:医生怎么说？
B:The disease fails to respond to drugs.
B:这种病无药可治。
热门TAG：词汇分类记忆法 英语单词分类 单词分类背诵 口语生活习语
