pleats
n. 活褶；裤褶（pleat 的复数）
v. 打褶（pleat 的第三人称单数）
例句
Her skirt hangs in perfect wide pleats.
她的裙子打着漂亮的宽褶自然下垂。
《柯林斯英汉双解大词典》
For pants without that crease (and many with it), pleats are unnecessary; for pants that need the pleat, they only need one.
对于没有折痕的裤子（以及许多有折痕的裤子），褶皱是不必要的；需要打褶的裤子只需要一条。
The military style had no pleats and was tapered at the leg bottom to conserve fabric.
军事风格没有折褶，并在腿底逐渐变细，以节省材料。
