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单词	battery
释义	batterybattery /ˈbæt̮əri/ ●●● S1 noun (plural batteries) Etymology ETYMOLOGYbattery Origin: 1500-1600 Old French baterie, from batre to hit; (4) from the idea of hitting with gunfire; (1) from the idea of a group of electricity-producing cells joined together Collocations COLLOCATIONS► change the batteries  Did you change the batteries in the flashlight? ► battery ... dead  I tried to start the car, but the battery was dead (=stopped producing electricity). ► charge/recharge a battery  It takes an hour to recharge the batteries. ► battery-powered/battery-operated  a battery-powered radio 1 [countable] science, physics a set of connected electrical cells that produce an electric current by changing chemical energy into electrical energy:  Did you change the batteries in the flashlight? I tried to start the car, but the battery was dead (=stopped producing electricity).charge/recharge a battery It takes an hour to recharge the batteries.battery-powered/battery-operated a battery-powered radio2[uncountable] law the crime of hitting someone:  Ferguson was found guilty of battery. → see also assault and battery3a battery of something a group of many things of the same type:  a battery of medical and psychological tests4[countable] several large guns used together:  He commands a battery of artillery.5recharge your batteries informal to rest or relax in order to get back your energy
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