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| sostanza che riduce lo strato di ozono; sostanza che riduce lo strato d'ozono | |||
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substance appauvrissant la couche d'ozone : 15 phrases in 5 subjects |
| Environment | 6 |
| General | 1 |
| Law | 5 |
| Name of organization | 2 |
| Politics | 1 |
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