[transitive] 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於新商店和新形象。
●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。