エネルギー交代 だった
enerugiikōtaidatta
1. Was an energy exchange.
Noun
1. Was an energy exchange.
1. energy conservation; economical use of energy
1. energy
1. Agency of Natural Resources and Energy
1. retreat; falling back
2. recession; waning
3. backspace (key)
1. antibody
1. change; alternation
1. Energy conservation.; Saving energy.
1. Wasn't energy-saving.; Didn't conserve energy.