challenge
| experiment
| challenge | |
| econ. | 拒绝 |
| exhib. | 难题 |
| fenc. | 挑引; 引诱 |
| footb. | 争抢; 阻截 |
| interntl.trade. | 申请回避; 宣布反对 |
| lab.eq. | 攻击; 激发 |
| experiment | |
| gen. | 进行实验 |
| environ. | 实验 |
| math. | 试验，试探 |
| met. | 科研设备; 科学仪器 |
| oil | 实验 |
| scient. | 进行试验 |
| space | 科研 设备 |
| sport. | 进行实验 |
| tech. | 试验 |
noun | verb | to phrases
|
challenge : 212 phrases in 50 subjects |
| Advertising | 1 |
| Agriculture | 6 |
| Animal husbandry | 8 |
| Athletics | 1 |
| Automobiles | 1 |
| Aviation | 7 |
| Boxing | 3 |
| Bridge card game | 2 |
| Business | 7 |
| Chemistry | 1 |
| Chess | 2 |
| Commerce | 1 |
| Construction | 1 |
| Cryptography | 8 |
| Desert science | 1 |
| Economics | 11 |
| Electronics | 8 |
| Engineering geology | 2 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Finances | 8 |
| Football | 2 |
| General | 8 |
| Golf | 1 |
| Heavy equipment vehicles | 1 |
| Historical | 1 |
| Information technology | 10 |
| International Monetary Fund | 2 |
| International trade | 5 |
| Laboratory equipment | 3 |
| Law | 26 |
| Management | 2 |
| Metallurgy | 2 |
| Multimedia | 2 |
| Name of organization | 2 |
| Nautical | 1 |
| Nursing | 1 |
| Outdoor activities and extreme sports | 1 |
| Project management | 1 |
| Public security | 1 |
| Racing and motorsport | 1 |
| Scientific | 3 |
| Securities | 1 |
| Sports | 27 |
| Table tennis | 1 |
| Technology | 12 |
| Telecommunications | 3 |
| Textile industry | 4 |
| United Nations | 3 |
| Veterinary medicine | 2 |
| Wushu | 2 |