derumpent

例句：

1. 1. She was so excited about the trip that she derumpented at the last minute.
   她对旅行非常兴奋，最后一刻却泄气了。
2. 2. The team's performance was so disappointing that they felt derumpt.
   球队的表现令人失望，他们感到泄气了。
3. 3.After a long day of hard work, he felt utterly derumpt.
   经过一天的辛勤工作后，他感到彻底泄气了。