2 sentences

1. 我爷爷今年七十岁了。

   wǒ yé​ye jīn​nián qī​shí suì le.

   My grandpa is seventy years old this year.

   Source: Dong Chinese Dictionary

2. 今天气温是华氏七十度。

   jīn​tiān qì​wēn shì Huá​shì qī​shí dù.

   The temperature today is seventy degrees Fahrenheit.

   Source: Tatoeba