closed rule

例句：

1. 1.The door was closed tightly to keep out the cold.
   门紧紧地关着，以防寒冷。
2. 2.The library is closed on Sundays.
   图书馆星期天关闭。
3. 3. The gate was closed by a heavy wooden bar.
   大门被一根沉重的木杠锁住了。