开

例句：

1. 1. The door is open, so please come in.
   门是开着的，请进来。
2. 2. The window is open, and I can see the beautiful view outside.
   窗户开着，我可以看到外面的美丽景色。
3. 3. The museum is open from 9:00 AM to 5:00 PM daily.
   博物馆每天上午9点到下午5点开放。