2 sentences

1. 猫的平均寿命是16岁。

   māo de píng​jūn​shòu​mìng shì16 suì.

   The average life expectancy of cats is 16 years.

   Source: CCMatrix

2. 一个味蕾的平均寿命是10天。

   yī​ge wèi​lěi de píng​jūn​shòu​mìng shì10 tiān.

   The average lifetime of a taste bud is 10 days.

   Source: CCMatrix