1 sentence

1. 许多农村家庭利用沼气来烧水做饭。

   xǔ​duō nóng​cūn jiā​tíng lì​yòng zhǎo​qì lái shāo shuǐ zuò​fàn.

   Many rural families use biogas for boiling water and cooking.

   Source: Dong Chinese Dictionary