[] 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。