3 sentences

1. 森林里传来丁丁的伐木声。

   sēn​lín lǐ chuán​lái zhēng​zhēng de fá​mù shēng.

   The sound of axes chopping wood came from the forest.

   Source: Dong Chinese Dictionary

2. 伐木工人在林中休息，顺便修理破损的柯。

   fá​mù gōng​rén zài lín zhōng xiū​xi, shùn​biàn xiū​lǐ pò​sǔn de kē.

   The lumberjack was resting in the woods and took the opportunity to repair a broken axe handle.

   Source: Dong Chinese Dictionary

3. 由于过度伐木，这片森林的面积在不断缩小。

   yóu​yú guò​dù fá​mù, zhè piàn sēn​lín de miàn​jī zài bù​duàn suō​xiǎo.

   Due to excessive logging, the area of this forest is shrinking.

   Source: Dong Chinese Dictionary