obstacle : 71 phrases in 21 subjects |
Agriculture | 1 |
Commerce | 5 |
Communications | 9 |
Economics | 5 |
Education | 1 |
Electric machinery | 1 |
Electronics | 3 |
Finances | 2 |
General | 4 |
Hobbies and pastimes | 4 |
Information technology | 2 |
International trade | 3 |
Labor law | 1 |
Law | 3 |
Life sciences | 2 |
Marketing | 2 |
Power lines | 1 |
Radio | 1 |
Rail transport | 1 |
Social science | 3 |
Transport | 17 |