词汇	悠憂
释义	悠憂 yōu yōu忧伤貌。悠忧
随便看	operating ampere-turn operating ampere turns operating ampere-turns operating analysis operating anchor load operating and exploring finger cot operating and guiding device operating and maintaining operating and maintenance operating and maintenance costs operating and maintenance-lies supply operating and maintenance supplies operating and management Operating and Support Hazard Analysis operating and training operating and vivisection table operating angle operating anomaly operating anoscope operating apparatus operating approach operating apro operating a productive system operating apron operating area