bent double
adjective uk/ˌbent ˈdʌb.əl/ us/ˌbent ˈdʌb.əl/
（由于强烈的感情或疼痛）屈身的，弯腰的
Someone who is bent double is standing with their upper body curved forwards and down towards the ground, often as a result of strong emotion or pain.
He was bent double with laughter/pain. 他笑得前仰后合／疼得弯下了腰。