pontobulbla

例句：

1. 1.I'm sorry, but I don't understand what you're trying to say.
   对不起，但我不明白你在说什么。
2. 2.He was so excited that he couldn't wait to tell his friends about it.
   他太兴奋了，等不及要告诉他的朋友们了。
3. 3. She was so happy that she couldn't stop smiling.
   她太高兴了，忍不住一直在笑。