conservation

CONSERVATION noun

[ U ] uk/ˌkɒnsəˈveɪʃən/ us conservation noun [U]
(NOT WASTE)

the careful use of energy, water, etc so that they are not wasted

сохранение
№2 (2473)№2 (2473)№3 (2404)№3 (2404)№4 (2385)№5 (2359)№6 (2354)№7 (2318)№8 (2316)№9 (2314)№10 (2310)№10 (2310)