3 sentences

1. 为什么维生素D对宝宝很重要？

   wèi​shén​me wéi​shēng​sù​dì duì bǎo​bao hěn zhòng​yào?

   Why is vitamin D important for babies?

   Source: CCMatrix

2. 为什么维生素D，对我们如此重要？

   wèi​shén​me wéi​shēng​sù​dì, duì wǒ​men rú​cǐ zhòng​yào?

   Why is vitamin D so important to us?

   Source: CCMatrix

3. 在每年的这个时候，维生素D对免疫系统和整体健康至关重要。

   zài měi​nián de zhè​ge shí​hou, wéi​shēng​sù​dì duì miǎn​yì​xì​tǒng hé zhěng​tǐ jiàn​kāng zhì​guān​zhòng​yào.

   Vitamin D is crucial for the immune system and overall health at this time of year.

   Source: CCMatrix