拱背 meaning in English
hogback
◇拱背梁 camber beam; 拱背线 extrados
Examples
- When the animals were roused, there was a paroxysmal cough with the back arched .
动物们惊起时，则有发作性咳嗽和拱背。 - One flares its wings and arches its back in a dramatic threat display to relieve the tension of crowding
有一只丹顶鹤展翅拱背，摆出威吓的姿态以纾解拥挤的压力。