drawstring

1. N-COUNT A drawstring is a cord that goes through an opening, for example, at the top of a bag or a pair of trousers. When the cord is pulled tighter, the opening gets smaller. (穿在袋口或裤子上的)拉绳[usu sing, oft N n]

...a velvet bag with a drawstring. ...带拉绳的天鹅绒袋子。