我实在不敢存一线的希望。

I have not the smallest hope.

youdao

这是一个巨大的突破，因为它就像一个一线的希望。

This was a huge breakthrough, because it was like a shimmer of hope.

youdao

只要有一线的希望，救援者就必须以百倍的努力，从废墟中寻找可能的生还者，从正在倒塌的建筑物中抢救出每一个生命。

As long as there's hope that the front line, who must rescue efforts to hundredfold, from the ruins in search for possible survivors, from under collapsed buildings in a rescue every life.

youdao