ink-bottle pore

例句：

1. 1.The ink-bottle pore is a tiny opening in the bottle that allows the ink to flow out.
   墨水瓶孔是瓶子中的一个小孔，允许墨水流出。
2. 2. The ink-bottle pore was so small that it was almost invisible.
   墨水瓶孔非常小，几乎看不见。
3. 3. The ink-bottle pore was used to prevent the ink from leaking out of the bottle.
   墨水瓶孔被用来防止墨水从瓶子里泄漏出来。