自我牺牲

例句：

1. 1. He gaveup his vacation to help his sick mother.
   他放弃了假期来帮助生病的母亲。
2. 2. Shemade a selfless sacrifice by giving upher job to care for her ailingfather.
   她为了照顾病重的爸爸，放弃了工作。
3. 3. The teacher's selflesssacrifice inspired the students to work harder.
   老师的无私奉献激励了学生们更加努力地学习。