silver lining

silver-lining的词性：
n.（名词）

1. A hopeful or comforting prospect in the midst of difficulty.
一线希望：困境中一个有希望的或令人感到安慰的前景

silver-lining的词源：

2. [From the proverb “Every cloud has a silver lining”]
[从谚语“黑暗中总有一线光明”而来]