Example sentences

• 什么原因让他今天心情不好？

  shénme yuányīn ràng tā jīntiān xīnqíng bù hǎo?

  What's the reason he feels bad today?

• 我这次迟到是有特别的原因。

  wǒ zhè cì chídào shì yǒu tèbié de yuányīn.

  I have a special reason for being late this time

• 明天他就要回国了，原因是他妈妈生病了。

  míngtiān tā jiù yào huíguó le, yuányīn shì tā māma shēngbìng le.

  He is going back to his country tomorrow, the reason is that his mother is sick

• 我不能去参加他的生日会的原因是我得加班。

  wǒ bùnéng qù cānjiā tā de shēngrì huì de yuányīn shì wǒ děi jiābān.

  I can't attend the birthday party because I have to work overtime