2 sentences for 再生 (zài​shēng — recycling)

1. 再生纸的使用有助于减少树木的砍伐。

   zài​shēng zhǐ de shǐ​yòng yǒu​zhù​yú jiǎn​shǎo shù​mù de kǎn​fá.

   The use of recycled paper helps reduce the cutting down of trees.

   Source: Dong Chinese Dictionary

2. 利用风力发电是一种清洁的可再生能源。

   lì​yòng fēng​lì fā​diàn shì yī zhǒng qīng​jié de kě zài​shēng néng​yuán.

   Using wind power to generate electricity is a clean and renewable energy source.

   Source: Dong Chinese Dictionary