| 释义 |
- air qualitynoun
a2 - climatenoun
a2 - climate changenoun
a2 - electricitynoun
a2 - energynoun
a2 - environmentnoun
a2 - garbagenoun
a2 - gasnoun
a2 - natural disasternoun
a2 - naturenoun
a2 - oilnoun
a2 - petrolnoun
a2 - plasticnoun
a2 - pollutionnoun
a2 - powernoun
a2 - protectverb
a2 - recycleverb
a2 - recyclingnoun
a2 - rubbishnoun
a2 - smokenoun
a2 - stormnoun
a2 - trashnoun
a2
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