a group or an organization that has a lot of power 强大的集团（或组织）◆China has been described as an ‘emerging economic powerhouse’. 中国被形容为“正在崛起的经济强国”。◆chief executive of a media powerhouse 一家媒体巨头的总裁
a person who is very strong and full of energy 精力充沛的人；身强力壮的人◆She's a powerhouse in the courtroom. 她在法庭上精力极其充沛。