heavy metal

heavy-metal的词性：
n.（名词）

1. A metal with a specific gravity greater than about 5.0, especially one that is poisonous, such as lead or mercury.
重金属：比重大于5.0的金属，尤指有毒物，例如铅或水银

2. Music Very loud, greatly amplified, brash rock music often with shouted, violent lyrics.
【音乐】 重金属音乐：强节奏、大音量、刺耳的摇滚音乐，通常配有尖声叫喊的歌词