2 sentences for 日 (rì — [measure word])

1. 金星上的一昼夜相当于117个地球日。

   jīn​xīng shang de yī zhòu​yè xiāng​dāng​yú117 ge dì​qiú rì.

   A day on Venus is equivalent to 117 days on Earth.

   Source: CCMatrix

2. 水星的旋转速度比地球慢得多，其自转周期约为58个地球日。

   shuǐ​xīng de xuán​zhuǎn sù​dù bǐ dì​qiú màn de duō, qí zì​zhuàn zhōu​qī yuē wéi58 ge dì​qiú rì.

   Mercury spins much more slowly than the Earth, with its day lasting about 58 Earth days.

   Source: CCMatrix