Word forms: 3rd person singular present tense crumples, present participle crumpling, past tense, past participle crumpled
1V-ERG 压皱;(使)变皱;(使)起皱 If you crumple something such as paper or cloth, or if it crumples, it is squashed and becomes full of untidy creases and folds. 压皱;(使)变皱;(使)起皱
She crumpled the paper in her hand. [VERB noun]
她把那张纸在手里揉成一团。
The front and rear of the car will crumple during a collision. [VERB]