The name of the Belarusian currency comes from the Russian rouble and was left after the collapse of the Soviet monetary system and Belarus "refusal to introduce a national currency."

白俄罗斯的货币的名称来源于俄罗斯货币—卢布，苏联货币体系崩溃后以留下来的；白俄罗斯却拒绝发行自己的民族货币。

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The ruble or rouble (currency code RUB) is the currency of the Russian Federation and Belarus (and formerly, of the Soviet Union and the Russian Empire).

卢布（货币代码RUB）是俄罗斯联邦和白俄罗斯（以前是苏联和俄罗斯帝国）使用的货币。

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As the Soviet economy opened up, prices soared and the rouble collapsed against the dollar - and their high wages became meaningless.

BBC: The closed city of Norilsk