boopia

例句：

1. 1. The bubbles in the drink were too big to drink.
   饮料中的气泡太大了，喝不下去。
2. 2. The foam on top of the milk was a sign that it had been sitting for a while.
   牛奶上面的泡沫表明它已经放置了一段时间了。
3. 3.The bubbles burst when the bottle was opened.
   当瓶子被打开时，气泡破裂了。