ELECTRICITY 电, [C] an object that provides a supply of electricity for something such as a radio, car, or toy

电池

You have to take the top off to change the batteries .

你得把顶盖拿掉才能更换电池。

When the red light comes on, you should recharge the battery .

红灯亮起的时候你就应该给电池充电了。

The car's got a flat battery .

汽车的蓄电池没电了。

a battery-operated hair dryer

使用电池的吹风机

a battery of sth, a group of many things of the same type

〔同类事物的〕一排，一组，一连串:

a battery of medical tests

一组医疗化验

FARM 农场, [C] [BrE] a row of small CAGES in which chickens are kept, so that the farm can produce large numbers of eggs

层架式鸡笼:

battery hens

在层架式鸡笼里饲养的母鸡

GUNS 枪炮, [C] several large guns used together

炮组，排炮:

an anti-aircraft battery

防空炮

CRIME 罪行, [U] [law] the crime of hitting someone

殴打罪:

He was charged with assault and battery .

他被控殴打和侵犯人身罪。

recharge your batteries, [informal] to rest or relax in order to get back your energy

休息（放松）以恢复精力:

A week in the mountains should recharge my batteries.

在山里休息一个星期，我的精力应该能恢复过来。