高空作业 Traditional 高空作業 gāo kōng zuò yè 🔊 to work high above the ground + Keep this word Meanings gāo kōng zuò yè 高空作業 to work high above the ground Its characters 高gāohighHSK 2空kōngemptyHSK 4作zuòto do; to engage in业yèline of businessHSK 6