I opened and closed a curtain in various speeds. The curtain was material. I opened it from both sides. 打開和關閉Curtains.wav 聲道:1 類型:wav pull、drapery、drop、closing、drape、slide、cloth、fast、material、opening、OWI、slow、curtains 拉、布料、下降、關閉、懸垂、滑動、布、快速、材料、開盤、OWI、慢、窗簾 資料來源:freesound ( https://freesound.org )