即兴的

例句：

1. 1. The band played an impromptu concert in the park last night.
   昨晚，乐队在公园里即兴演奏了一场音乐会。
2. 2. She was so excited that shecouldn't wait to start her ownbusiness.
   她太兴奋了，迫不及待地想要开始自己的生意。
3. 3. The artist created a pieceof art on the spot, whichwas considered an impromptu masterpiece.
   这位艺术家在现场创作了一件艺术品，被认为是一场即兴杰作。