single polarization single-mode fiber

例句：

1. 1. The single-minded focus onthe project is commendable.
   对这个项目一心一意的关注是值得赞扬的。
2. 2. He has a single-minded desireto succeed.
   他有一个一心一意的成功欲望。
3. 3. The single-handed effort ofthe volunteers saved many lives.
   志愿者们单枪匹马的努力挽救了许多生命。