total failure

例句：

1. 1. He gave up hope of success after his first attempt failed completely.
   他的第一次尝试完全失败后，他放弃了成功的期望。
2. 2. The team's performance was a total failure in the final round.
   该队的最后表现是彻底的失败。
3. 3. His plan for the project was a total failure due to lack of proper planning.
   由于缺乏适当的计划，他对这个项目的计划是完全失败的。