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| circumstances by which (Since the circumstances by which aircraft and ships go missing there remains a mystery by virtue of their very disappearance, it's impossible to truly say if this couple's disappearance is a bonafide Bermuda Triangle event or merely the result of inclement weather. ART Vancouver); circumstances under which (I would be much obliged if you would tell me exactly the circumstances under which the document disappeared. ART Vancouver) | |||
| обстоятельства, при которых: 19 phrases in 9 subjects |
| Armored vehicles | 1 |
| Aviation | 1 |
| Business | 2 |
| General | 7 |
| Law | 4 |
| Nuclear and fusion power | 1 |
| Obsolete / dated | 1 |
| Programming | 1 |
| Quality control and standards | 1 |