My birthday is in January

我的生日在一月份

We're having a special dinner for her birthday

我们为她的生日准备了一顿特别的晚餐

She received a bouquet of red roses for her birthday

她过生日时收到一束红玫瑰

I painted a picture for my mom’s birthday.

我为妈妈的生日画了一幅画。

I bought a present for her birthday.

我给她买了一份生日礼物。