His laughter, showing China's positive and optimistic, healthy and positive mental outlook;

他的欢笑，展示着中国积极乐观、健康向上的精神面貌；

youdao

His laughter, showing China's positive and optimistic, healthy and positive mental outlook;

他的欢笑，展示着中国积极乐观、健康向上的精神面貌；

youdao