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二酸化炭素， にさんかたんそ

1. carbon dioxide, CO2

tbd

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によって， に因って， に依って

1. according to, by (means of), due to, because of

根据；用……(方法)；因为

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危害， きがい

1. injury, harm, danger

tbd

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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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ことがある， 事がある

1. (for something) to have occurred, to have done (something) 2. (for something) to happen on occasion

(某事)发生，已完成(某事)；(某事)偶尔发生

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