close the door on

例句：

1. 1.Please close the door when you leave.
   请在你离开时关上门。
2. 2. The children were playing in the garden, so we closed the door.
   孩子们在花园里玩耍，所以我们关上了门。
3. 3. After dinner, we always close the door to keep the house warm.
   晚饭后，我们总是关门来保持房子温暖。