我已经记下了会议里的注意事项。

Wǒ yǐjīng jìxià le huìyì lǐ de zhùyì shìxiàng.

I have already jotted down the important matters from the meeting.

天气冷了，要注意保暖。

Tiānqì lěng le, yào zhùyì bǎonuǎn.

The weather is cold, pay attention to keeping warm.

我胖了很多，开始要注意饮食了。

Wǒ pàng le hěnduō, kāishǐ yào zhùyì yǐnshí le.

I'm a lot fatter, I need to pay attention to my diet.