2 sentences

1. 很快他们就被煤灰覆盖了。

   hěn kuài tā​men jiù bèi méi​huī fù​gài le.

   Soon they were covered with coal dust.

   Source: CCMatrix

2. 钛还可以在煤灰、植物，甚至人体中找到。

   tài hái kě​yǐ zài méi​huī, zhí​wù, shèn​zhì rén​tǐ zhōng zhǎo dào.

   Titanium is also found in coal ash, plants, and even the human body.

   Source: CCMatrix