battery/'bætərɪ/

n. a device that provides electricity for radios, cars, etc.

n. 〖复-ries/-rɪz/〗 [C] 电池：This radio takes two medium-sized batteries. 这个收音机用两节中号电池。

◇change the batteries 换电池

构词bat （= beat击） + t + -ery→把制电物质压在一起成“电池”

同缀 nursery; bakery; brewery; gallery