Related words
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Related words
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| エコロジー(ecology) > |
| 酸性雨(acid rain) > |
| 海洋汚染(marine pollution) > |
| 原子力発電所(nuclear power station) > |
| 土壌汚染(soil pollution) > |
| 温室ガス(greenhouse gas) > |
| 節電(save electricity) > |