1 sentence

1. 工厂正在试制一种节能环保的新型材料。

   gōng​chǎng zhèng​zài shì​zhì yī zhǒng jié​néng huán​bǎo de xīn​xíng cái​liào.

   The factory is trial-producing a new type of energy-saving and eco-friendly material.

   Source: Dong Chinese Dictionary