教育和医疗是社会发展最重要的两个领域。

Education and healthcare are two of the most important ___sectors for social development.

他在技术和金融领域都有工作经验。

He has work experience in both the technology and finance ___sectors.

这个圆被分成八个不等的扇形区域。

The circle is divided into eight unequal ___sectors.

军队被派往城市的东区执行任务。

The troops were sent to the eastern ___sectors of the city for the mission.