Will you have nerves of steel to withstand massive infection?

你有钢铁般的神经承受巨大的感染？

Entrepreneur has to have nerves of steel and a very strong stomach.

企业家需要有钢铁般的意志和强健的体格。

You must have nerves of steel to be able to climb up that tall chimney.

你必须具有超人的胆量和勇气，才能爬上那个高烟囱。

The firefighters must have nerves of steel! I can't believe what they go through to save people.

消防队员真的太神勇了！我不敢相信他们经受那些冒险去救人。

One possibility is that they have nerves of steel. The other is that they know something nobody else does.

一种可能是他们有钢铁般的神经，另一种可能则是他们知道一些不为外人所知的东西。