令人气馁的

例句：

1. 1. The failure of the project has completely disheartened me.
   项目的失败让我彻底失去了信心。
2. 2. She was so discouraged by her teacher's criticism that she stopped trying.
   她被老师批评得如此厉害，以至于她放弃了努力。
3. 3.The news of their success discouraged others from trying.
   他们成功的消息让其他人都失去了尝试的勇气。