lostadj.迷路的；丢失的；错过的；失败的；不知所措的；摧毁的；被杀死的；忘我的；不能理解的动词lose的过去式和过去分词形式lost edge虚掉的边线

1. I lost my breath when I got to the top of the hill.
   我爬到山顶时喘不过气来了。
2. We ran so fast that we were out of breath.
   我们跑得太快而喘不过气来。