Work high above the ground requires special safety measures.

高空作业需要特别的安全措施。

He feels nervous because of the work high above the ground.

他因为高空作业而感到紧张。

They are doing work high above the ground for the new building.

他们正在为新建筑进行高空作业。

Workers who work high above the ground must wear safety harnesses.

高空作业工人必须佩戴安全带。