reinforcement : 66 phrases in 16 subjects |
Agriculture | 2 |
Construction | 10 |
Electricity generation | 1 |
Electronics | 1 |
Environment | 3 |
General | 3 |
Hobbies and pastimes | 1 |
Industry | 10 |
Insurance | 1 |
Labor law | 2 |
Materials science | 1 |
Mechanic engineering | 5 |
Medical | 5 |
Metallurgy | 15 |
Obsolete / dated | 1 |
Transport | 5 |