5 sentences

1. 那是我离开的原因之一。

   nà shì wǒ lí​kāi de yuán​yīn zhī yī.

   That's one of the reasons I left.

   Source: OpenSubtitles

2. 这也是我爱上他的原因之一。

   zhè yě shì wǒ ài​shàng tā de yuán​yīn zhī yī.

   It's one of the reasons that I fell in love with him.

   Source: OpenSubtitles

3. 那是原因之一。

   nà shì yuán​yīn zhī yī.

   That is one of the reasons.

   Source: OpenSubtitles

4. 工业废水是造成水污染的主要原因之一。

   gōng​yè fèi​shuǐ shì zào​chéng shuǐ​wū​rǎn de zhǔ​yào yuán​yīn zhī​yī.

   Industrial wastewater is one of the main causes of water pollution.

   Source: Dong Chinese Dictionary

5. 白内障是导致老年人失明的主要原因之一。

   bái​nèi​zhàng shì dǎo​zhì lǎo​nián​rén shī​míng de zhǔ​yào yuán​yīn zhī yī.

   Cataracts are one of the leading causes of blindness in the elderly.

   Source: Dong Chinese Dictionary