performance art 行为艺术(通过行为表现而非实物创作所展示的艺术形式)

【例句】
Performance art in a new art form in China everywhere, active since.
行为艺术以一种的新的艺术形态在中国遍地开花，活跃至今。

After all, teaching is partially a performance art, and a performer can only be as good as his or her audience.
毕竟，教学，是部分的行为艺术，表演者能够和他或她的观众一样好。