I just want to hold the slim hope, but I can't get it. I want to let it go.

把它作为我打开新职业的试金石和练兵场，我应该从中可以学到很多东西。

The doctor will go on operating even though there is only a slim hope of success.

虽然成功的希望渺茫，但医生仍将继续手术。