pow·er pack
noun/ˈpaʊə pæk/
/ˈpaʊər pæk/
- a device that stores and supplies electrical power. Power packs are usually designed to be easy to carry with you.
电源组：一种存储和供电的设备。电源组通常设计为易于随身携带。 - They are offering a discount on portable power packs for tablets and phones.
他们为平板电脑和手机的便携式电源组提供折扣。
- They are offering a discount on portable power packs for tablets and phones.