Definition
to request someone's presence to assist in a challenging situation
叫来；召来；请来
When the hospital encountered a complex case, the doctor decided to call someone in.
当医院遇到复杂的病例时，医生决定叫来专家。
After the delays in the project, management had to call someone in to provide assistance.
在项目延误后，管理层不得不请来专家提供协助。
When a technical issue arises unexpectedly, the team often calls someone in from IT.
当技术问题意外出现时，团队经常会叫来IT部门的人。