地下电影 做为独立制片影片前卫电影和实验电影的同义词也指处理尖锐题材或故意反传统的电影
Underground films, as a synonym for independent films, avant-garde films and experimental films, also refer to films that deal with sharp themes or deliberately go against tradition
以上为机器翻译结果，长、整句建议使用 人工翻译 。