something with a usable capacity for doing worksuch nonrenewable fuels as coal, petroleum, and natural gas
such nonrenewable fuels as coal, petroleum, and natural gas
energies, powers
kindlings, propellants(also propellents)forces
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。