[] to supply a machine or vehicle with the energy that makes it work驱动，推动（机器或车辆）◆The aircraft is powered by a jet engine.这种飞机由喷气发动机驱动。◆(figurative) Sales growth has been powered by new stores and a new image.销售增长的动力来源于新商店和新形象。●ˌpower sth ˈupto prepare a machine to start working by supplying it with electricity, etc.给…供电（等）；使（机器）启动◆I need to power up my laptop.我得给膝上型电脑充电。