政府已开始努力改革教育系统。

The government has initiated efforts to ___reform the education system.

达格·哈马舍尔德通过改革其结构使联合国的工作更高效。

Dag Hammarskjold made the work of the UN more efficient by ___reforming its structure.

需要进行重大的立法变革来改革过时的税法。

Significant legislative changes are required to ___reform the outdated tax code.