中间开口处

例句：

1. 1. The door is open, so you can go in.
   门是开着的，你可以进去了。
2. 2. The sun opens its eyes to the world every morning.
   太阳每天早晨都向世界展示它的光明。
3. 3. The artist opened his show with a painting of the ocean.
   艺术家以一幅海洋画作为他的展览开幕。