词根:bat
bat 打击 + ery 构成名词， 表特性 -> 将（电量）打入 -> battery 电池
n. 电池，蓄电池
n. 殴打
n. 炮台，炮位I have a battery tester in my garage.
我的车库里有台电池测试仪。
Before use， the battery must be charged.
电池使用前必须充电。
Alex had forgotten to charge the battery.
亚历克斯忘了给电池充电。
The device can recharge a battery in about 25 minutes.
该充电器可在约25分钟内完成给电池充电。
If you leave your headlights on you'll soon run down the battery.
如果你让车头灯一直亮着，很快就会把电池耗尽的。
