求翻译：此外，今天是张井在美国时间的生日，由于学校有活动，妈妈没有能够接回家来过生日，但是给她送去了蛋糕，让她和同学们一起过14岁生日。是什么意思？

In addition, Zhang wells in the United States today is the birthday of the time, due to school activities, not able to take home to my mother's birthday, but sent her a cake, so she and her classmates together over 14 years old birthday.

正在翻译，请等待...

In addition, today is Zhang Jing in the American time birthday, because the school has the activity, mother has not been able jiehui the family to celebrate a birthday, but has sent to the cake to her, lets her and schoolmates crosses the 14th birthday together.

In addition, today is Zhang Jing in United States time birthday, due to school activities, and mother had not been home to celebrate their birthday, but sent her a cake, 14 birthday with her classmates.