closed mold

例句：

1. 1.The door was closed tight to keep out the cold wind.
   门被紧紧关上，以抵御寒冷的风。
2. 2.The factory is closed for maintenance.
   工厂因维修而关闭。
3. 3.Please close the window before you leave.
   在你离开之前请把窗户关好。