翻译1: What is your professional learning？
professional : 这是形容词，名词形式为profession表示大学读的专业。
翻译2: what's your major ？
或者：what do you major in ？
major : 意为主修科目; 主修课程。
例句:
1.?他大学时的专业是国际贸易。?
He majored in international commerce in college.
2. 专业人员的助手受过训练辅助专门人员的非专职人员?
A trained worker who is not a member of a given profession but assists a professional.
3. 医术，医业，医学有关医学的技术和专业?
The art or profession of medicine.
4. 从业者，执业者从事某事的人，尤指从事职业、专业或技术的人?
One who practices something, especially an occupation, a profession, or a technique.