" What would frighten my white knight" ?

" 有什么好让我的白骑士担心的？"

The white knight appeared at once. " Your Grace" .

白袍骑士立刻现身。" 陛下。"

Sam Bankman-Fried's sudden turn from white knight to detainee.

萨姆·班克曼-弗里德突然从救星变成了未决囚犯。

Why is the headline calling Sam Bankman-Fried a white knight?

为什么新闻标题称萨姆·班克曼-弗里德为救星（白衣骑士）？

Is this expression — 'white knight' — is it used very often in an average conversation?

‘white knight’这个表达在日常对话中经常使用吗？

And 'white knight' — someone or something that helps others.

还有“救星”——帮助别人的人或事。

We have 'file', 'rise and fall', and 'white knight'.

我们有“提起（诉讼）”、“兴衰”和“救星”。

Her own twin interrupted her musings. " Would Your Grace honor her white knight with a dance" ?

她的孪生弟弟打断她的沉思，" 陛下愿意随您的白骑士下场跳舞吗？"

But when she looked, the white knight was gone, the bridge across the dry moat down but undefended.

她探头一看，白骑士不见了，干涸护城河上的吊桥放了下来，无人守卫。

And it rescues or helps people, and importantly, a white knight can also be someone that gives financial help.

它拯救或帮助人们，重要的是，白衣骑士也可以是提供经济帮助的人。