[] to think or accept that sth is true but without having proof of it假定；设想；认为◆It is reasonable to assume (that) sales will improve.认为销售量会提高是有道理的。◆These fuels are assumed to be non-polluting.人们认为这些燃料不会造成污染。◆Our forecasts assume an average oil price of $55 a barrel.我们的预测假定平均油价为每桶 55 美元。to take or begin to have power or responsibility取得（权力）；承担（责任）◆She will assume the role of chairperson on July 1.她从 7 月 1 日起将担任主席。◆Under the deal, RT Group assumes full control of Ultramast.根据这宗交易协议，RT 集团取得对 Ultramast 的完全控制权。