How do you say

We’re planning to go to Sanya for vacation next month.

..in Chinese?

我们打算下个月去三亚度个假。

wǒ men dǎ suàn xià gè yuè qù sān yà dù gè jiǎ 。

How do you say "I’ve been learning to ride a bike and I’m going to buy a new one in a week." in Chinese?