Sure! Here is an expanded translation of your sentence into English:
"I have a favorite stuffed toy, a rabbit. I love playing with it. My dad gave it to me when the Olympics were taking place in Sochi."
If you want a bit more detail or context in the translation, you might consider expanding it further, like so:
"I have a favorite plush toy, which is a rabbit. I really enjoy playing with it. My dad gave it to me as a gift during the time when the Olympics were held in Sochi."
This translation maintains the original meaning and context while providing a bit more detail in English.