为了提高效率，公司决定精简部门结构。

To improve efficiency, the company decided to ___rationalise its departmental structure.

她试图用工作太忙来合理化自己忘记朋友生日的事实。

She tried to ___rationalise forgetting her friend's birthday by saying she was too busy with work.

公司决定优化生产流程，通过自动化来减少人力成本。

The company decided to ___rationalise the production process by introducing automation to cut labor costs.