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- 雷根斯堡Regensburg
- 迅雷sudden peal of thunder
- 根root
- 雷根reagen
- 雷根政权Reagan administration
- 威尔逊Wilson
- 雷诺Renault
- 罗纳德Ronald
- 一根a length of
- 根号radical sign
- 防雷lightning protection
- 威尔逊病hepatolenticular degeneration
- 根的radicular
- 雷神Thor
- 密歇根Michigan
- 避雷thunder-arresting
- 雷射laser
- 落叶归根in one's old age, one wants to return to one's home
- 辣根horseradish
- 雷恩reyn(unit of dynamic viscosity)