He is interested in English 【deeply】.He often works at it until into the【deep】 night.
1）deep 形容词 修饰 名词night
2）deeply 副词,修饰 interested
【俊狼猎英】 欢迎追问!俩者有何区别？你只要记住 形容词是修饰名词的或者 是放在系动词之后的而副词是修饰动词或形容词的