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| 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 |
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