学校通过取消重复课程来优化课程体系。

The school ___rationalised its curriculum by removing duplicate courses.

她用加班来解释迟到的原因，试图合理化自己的行为。

She ___rationalised being late by saying she had to work overtime.

公司决定精简部门结构以提高运营效率。

The company ___rationalised its departments to enhance operational efficiency.