shizen enerugii
1. natural energy (usu. renewable energy)
Noun
#55750
1. natural energy (usu. renewable energy)
1. nature; the natural world
1. nature; Mother Nature
1. natural environment; (the) environment
1. nature park; natural park
1. unnatural; artificial
1. energy conservation; economical use of energy
1. energy
1. Agency of Natural Resources and Energy