1 sentence

1. 所有电池都含有储存和释放电荷的化学物质。

   suǒ​yǒu diàn​chí dōu hán​yǒu chǔ​cún hé shì​fàng diàn​hè de huà​xué wù​zhì.

   All batteries contain chemicals that store and release electrical charge.

   Source: CCMatrix