something that is performed, made, or done without preparationa guitar extemporization
a guitar extemporization
ad-libs, impromptus, improvisations, improvs
concoctions, contrivances, creations, innovations, inventions, wrinkles
bits, drills, routines
英语同义词词典收录了63618条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。