教师必须不断更新他们的知识，以保持他们的专业能力。
Teachers have to constantly update their knowledge in order to maintain their professional competence.
当教授有意识去发现和研究当代商业故事并带入课堂，这样他们别无选择，只能不断更新自己的知识面。
When professors have an incentive to find and investigate contemporary business stories and bring them into the classroom, they have no choice but to stay up to date.
你应该愿意接受挑战，并愿意不断更新自己的知识，不仅要能通过培训来提升水平，也要能够自学相关领域的新知识。
You should love to challenge yourself and be willing to extend your knowledge to stay up-to-date not only by trainings but also by self-study.
应用推荐