 |
| |||
| 无人帮助的; 单独完成的; 独立的 | |||
| 未使用技术攀登的 | |||
|
unaided : 18 phrases in 9 subjects |
| Advertising | 7 |
| Aviation | 1 |
| Construction | 1 |
| Drilling | 1 |
| General | 1 |
| Marketing | 2 |
| Scientific | 1 |
| Space | 1 |
| Technology | 3 |
|
| |||
| 无人帮助的; 单独完成的; 独立的 | |||
| 未使用技术攀登的 | |||
|
unaided : 18 phrases in 9 subjects |
| Advertising | 7 |
| Aviation | 1 |
| Construction | 1 |
| Drilling | 1 |
| General | 1 |
| Marketing | 2 |
| Scientific | 1 |
| Space | 1 |
| Technology | 3 |