| |||
| 无助的; 孤立的; 无助推的; 不使用助推器〔助航设备〕的; 无起飞加速装置的; 无动力推进的 | |||
|
unassisted : 8 phrases in 6 subjects |
| Animal husbandry | 1 |
| Automobiles | 1 |
| Aviation | 2 |
| Electronics | 1 |
| Nautical | 1 |
| Technology | 2 |
| |||
| 无助的; 孤立的; 无助推的; 不使用助推器〔助航设备〕的; 无起飞加速装置的; 无动力推进的 | |||
|
unassisted : 8 phrases in 6 subjects |
| Animal husbandry | 1 |
| Automobiles | 1 |
| Aviation | 2 |
| Electronics | 1 |
| Nautical | 1 |
| Technology | 2 |