2 sentences

1. 他不慎从马背上跌落。

   tā bù​shèn cóng mǎ​bèi shàng diē​luò.

   He accidentally fell off his horse.

   Source: Dong Chinese Dictionary

2. 由于市场不景气，股价迅速跌落。

   yóu​yú shì​chǎng bù jǐng​qì, gǔ​jià xùn​sù diē​luò.

   Due to the market slump, stock prices plummeted rapidly.

   Source: Dong Chinese Dictionary