with obj.
1- crush (something, typically paper or cloth) so that it becomes creased and wrinkled把（纸或布等某物）弄皱：
he crumpled up the paper bag
他揉皱了纸袋
as adj. crumpled a crumpled sheet皱巴巴的床单。
1.1
- no obj. become bent, crooked, or creased变得弯曲; 起皱：
the bumper crumpled as it glanced off the wall.
那保险杠在从墙上擦过时被弄弯了。
1.2
- no obj.(of a person) suddenly flop down to the ground so that their body appears bent or broken（人）（突然）倒下：
she crumpled to the floor in a dead faint.
她突然倒地, 不省人事。
1.3
- no obj.(of a person's face) suddenly sag and show an expression of desolation（人的脸）突然下沉（或下陷）并露出凄凉的表情：
the child's face crumpled and he began to howl.
那孩子的脸一沉开始号啕大哭起来。
1.4
- no obj. suddenly lose force or effectiveness崩溃, 瓦解：
her composure crumpled.
她一下子失去了镇定。
- a crushed fold, crease, or wrinkle褶皱, 皱纹。
派生词
crumply
adjective词源
Middle English: from obsolete crump 'make or become curved', from Old English crump 'bent, crooked', of West Germanic origin; related to German krumm.