1. As a preprofessional dancer, she spent several years training and preparing for a career in ballet.

作为一个准专业舞者，她花了几年时间接受训练和准备来从事芭蕾舞的职业。

2. The preprofessional program at this university provides students with the necessary foundation for graduate studies in medicine.

该大学的准专业课程为学生提供了进一步攻读医学研究生所需的必要基础。