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en ligne; en tandem |
em tandem : 52 phrases in 11 subjects |
Agriculture | 10 |
Chemistry | 1 |
Communications | 12 |
Criminal law | 1 |
Earth sciences | 2 |
Electronics | 7 |
Hobbies and pastimes | 1 |
Life sciences | 1 |
Mathematics | 2 |
Mechanic engineering | 3 |
Transport | 12 |