败

例句：

1. 1. The team's performance was a complete loss.
   团队的表现是彻底的失败。
2. 2. The game ended in a 5-0 defeat for the home team.
   比赛以主队5-0的惨败结束。
3. 3. He gave up hope when he heard that his project would be a complete failure.
   当他听说他的项目将彻底失败时，他放弃了希望。