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太陽エネルギー， たいようエネルギー

1. solar energy, solar power

tbd

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環境， かんきょう

1. environment, surroundings, circumstances

环境

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を

1. indicates direct object of action 2. indicates subject of causative expression 3. indicates an area traversed 4. indicates time (period) over which action takes place 5. indicates point of departure or separation of action 6. indicates object of d...

表示动作的直接对象；表示经过的场所；表示离开或分开的点

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は

1. indicates sentence topic 2. indicates contrast with another option (stated or unstated) 3. adds emphasis

指示句子的主题

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