2 sentences

1. 一旦堕入邪路，就很难再回头了。

   yī​dàn duò rù xié​lù, jiù hěn nán zài huí​tóu le.

   Once you fall into evil ways, it is hard to turn back.

   Source: Dong Chinese Dictionary

2. 他不慎从陡峭的山崖上堕入深谷。

   tā bù​shèn cóng dǒu​qiào de shān​yá shàng duò rù shēn​gǔ.

   He accidentally fell from a steep cliff into a deep valley.

   Source: Dong Chinese Dictionary