hardcore，
英文单词，主要用作为形容词和名词，作形容词时意为“硬核的；赤裸裸描写
性行为的”，作名词时意为“硬核；硬底层；碎砖
垫层；硬核
摇滚乐”。
1.N a style of rock music characterized by short fast numbers with minimal melody and aggressive delivery 硬核
摇滚乐1.The outer layers of the volcano were worn away, until the hardcore stood completely exposed.
2.I started to study hardcore rap.
3.I started to study hardcore rap.