5 sentences for 因 (yīn — cause)

1. 凡事有因必有果。

   fán shì yǒu yīn bì yǒu guǒ.

   Every cause has its effect.

   Source: Dong Chinese Dictionary

2. 事出必有因。

   shì chū bì yǒu yīn.

   Everything happens for a reason.

   Source: Dong Chinese Dictionary

3. 你忘记这场悲剧是因何而起的吗？

   nǐ wàng​jì zhèi cháng bēi​jù shì yīn hé ér qǐ de ma?

   Did you forget why this tragedy began in the first place?

   Source: OpenSubtitles

4. 环境是影响胎儿发育的重要因素。

   huán​jìng shì yǐng​xiǎng tāi'ér fā​yù de zhòng​yào yīn sù.

   Environment is an important factor affecting fetal development.

   Source: Dong Chinese Dictionary

5. 御史因他行为不端，在大殿上弹了他一本。

   yù​shǐ yīn tā xíng​wéi bù duān, zài dà​diàn shàng tán le tā yī běn.

   The censor impeached him in the grand hall for his misconduct.

   Source: Dong Chinese Dictionary