公司为新员工举办了关于团队合作的研讨会。

The company organized ___seminars on teamwork for new employees.

公司将为新员工举办一系列关于市场营销的研讨会。

The company will hold a series of ___seminars on marketing for new employees.

每周五下午我们都会参加关于文学研究的研讨会。

We attend weekly ___seminars on literary studies every Friday afternoon.