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| 英语 词库 | |||
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| name unknown | |||
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| Nations Unies (United Nations) | |||
| not used (ybelov) | |||
| tone number unobtainable tone | |||
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| nipple up (Leonid Dzhepko) | |||
| nipple up (to bolt together valves or fittings, as in "nipple up BOP stack") | |||
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n.u : 17 短语, 6 学科 |
| 一般 | 7 |
| 政治 | 3 |
| 社会科学 | 1 |
| 统计数据 | 3 |
| 财政 | 1 |
| 通讯 | 2 |