What is your zodiac sign? 

你属什么？/ 你的生肖是什么？
My zodiac sign is Rooster. 

我属鸡。/ 我的生肖是鸡。 

Your zodiac sign is decided by your birth year.
生肖是由你出生的年份决定的。
be decided by... 由……决定
decide 动词，决定，确定

Which zodiac is the luckiest in 2023?
2023年哪个生肖/属相最幸运？
The top 3 luckiest zodiac signs are the Ox, Snake, and Dog in the Year of the Rabbit 2023.
在2023兔年最幸运的三个生肖/属相是牛、蛇、狗。

Happy Chinese New Year！