外宿许可

例句：

1. 1. We need to check the validity of our visa before we can travel abroad.
   我们需要在出国前检查我们的签证是否有效。
2. 2. The hotel provided us with a room key for our stay, which was very convenient.
   酒店为我们提供了房间钥匙，非常方便。
3. 3. Before leaving the country, it's important to obtain an exit permit from the embassy or consulate.
   离开该国之前，从大使馆或领事馆获得出境许可是很重要的。