“若干”用英语怎么说

若干研究已经发现了两个重要常量。Two significant constants have been found in a number of research studies.但是，他的货币理论中存在若干关键性错误。There were, however, a number of crucial flaws in his monetary theory.报告将调查结果按地区分成若干部分。The report breaks down ...

“若干”的拼音为：rě gān...