2 sentences

1. 他在四十岁之前已积聚了一大笔财富。

   tā zài sì​shí suì zhī​qián yǐ jī​jù le yī dà​bǐ cái​fù.

   Before he was forty he amassed a large fortune.

   Source: UM-Corpus: Spoken

2. 不安全的氡水平会积聚在任何建筑物，包括家中。

   bù ān​quán de dōng shuǐ​píng huì jī​jù zài rèn​hé jiàn​zhù​wù, bāo​kuò jiā​zhōng.

   Unsafe levels of radon can accumulate in any building, including homes.

   Source: CCMatrix