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| land clearing; pioneering; clearing land; clearing; deforestation | |||
| open clearings | |||
| site clearing | |||
| land clearing Removal of trees, undergrowth, etc. in preparation for ploughing, building, etc. | |||
| assarting; land clearance; bush and bog work; clearing of the ground; grubbing; land reclamation; ploughing virgin soil | |||
| development of virgin land; development of wild land; development and cultivation of virgin land; reclamation of virgin land; reclamation; wood cutting | |||
| forest clearing | |||
| clearing of land | |||
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| clearance of land | |||
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defrichement : 15 phrases, 5 sujets |
| Agriculture | 10 |
| Finances | 1 |
| Général | 2 |
| Sciences de la vie | 1 |
| Sciences naturelles | 1 |