不感恩的

例句：

1. 1. He was so ungrateful that he refused to help me when I needed it most.
   他如此忘恩负义以至于在我需要帮助的时候拒绝帮助我。
2. 2. The manager was ungrateful towards his staff, which led to a poor working environment.
   经理对员工不感恩，这导致了糟糕的工作环境。
3. 3.She felt ungrateful for not receiving the recognition she deserved.
   她因为没有得到应有的认可而感到不感恩。