Past confabs among oil-producing nations have caused frictions between price bulls and bears. Part of the reason the Opec+ cartel launched a new monthly format this year was to encourage harmony. Alas, uncertainties about the timing and effectiveness of a new Covid-19 vaccine triggered yet another dispute.
过去的产油国会议让多空势力之间产生分歧。“欧佩克+”(Opec+)今年采取新的月度磋商方式，部分原因是为了鼓励和谐。可惜，围绕新型冠状病毒肺炎（COVID-19，即2019冠状病毒病）疫苗的有效性及上市时间的不确定性，引发了另一场争论。
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