151 To accumulate 积累 (jīlěi)

save
save energy

2 节 [節] jié (joint, economize, save) save: ~水 save water || ~电 save electricity || ~能 save energy '
5 节能 [節-] jiénéng (save-energy) save energy: ~产品 energy saving products || ~设备 energy saving equipment || ~灯具 energy saving lamps '

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