3 sentences

1. 天空，并不总是蔚蓝。

   tiān​kōng, bìng​bù zǒng​shì wèi​lán.

   The sky is not always blue.

   Source: CCMatrix

2. 暴风雨过后天空变得蔚蓝而清澈。

   bào​fēng​yǔ guò​hòu tiān​kōng biàn​de wèi​lán ér qīng​chè.

   After the storm the sky became blue and clear.

   Source: UM-Corpus: Science

3. 我希望太平洋就和我梦中所见的一样蔚蓝。

   wǒ xī​wàng tài​píng​yáng jiù hé wǒ mèng​zhōng suǒ​jiàn de yī​yàng wèi​lán.

   I hope that the Pacific is as blue as it has been in my dreams.

   Source: CCMatrix