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| checker; impedient; interference; trammel | |||
| trammel (复) | |||
| bar | |||
| blockage | |||
| hamper; holdback | |||
| deterrent | |||
| encumbrance; obstruction | |||
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| barrier | |||
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| deterrent | |||
| 阻碍物: 8 phrases in 7 subjects |
| Agriculture | 2 |
| Construction | 1 |
| Desert science | 1 |
| Ecology | 1 |
| International trade | 1 |
| Oil / petroleum | 1 |
| Technology | 1 |