因为下雨,我没有去公园。
yīnwèi xiàyǔ , wǒ méiyǒu qù gōngyuán 。
Because it rained, I didn’t go to the park.
因他的努力,项目终于完成了。
yīn tāde nǔlì , xiàngmù zhōngyú wánchéng le 。
Due to his hard work, the project was finally completed.
我喜欢她,因为她很聪明。
wǒ xǐhuān tā , yīnwèi tā hěn cōngmíng 。
I like her because she is very smart.