If an unpleasant experience shakes someone up, it makes them feel shocked and upset.

I think she was pretty shaken up by the accident. 我觉得这次事故让她饱受惊吓。

to cause large changes in something such as an organization, usually in order to make improvements

Technological changes have shaken up many industries. 技术革新令许多产业发生了重大调整。

The first thing the new chairman of the company did was to shake up the management. 公司新任董事长所做的第一件事就是重组管理层。

Several new players have been brought in to shake up the team. 引进了几位新队员以重组队伍。