It was like living on a knife edge.

这真像在刀刃上过日子。

They are on a knife edge. It could go either way.

这些白犀牛处于危险的边缘。 两种情况都有可能。

Only one thing is certain: we live on a knife edge.

只有一点是肯定的，我们生活在刀刃上。

We were quite literally hanging on for our lives and doing so on a knife edge.

毫不夸张地说，我们是把命悬在了刀锋上。

As scientists, we spend our lives living on a knife's edge.

作为科学家，我们一生都生活在刀刃上。

I was balanced on a knife edge and you could have swung me either way.

我在刀刃上保持平衡， 你可以用任何一种方式摆动我。

Yeah, we were really a bit on a knife edge as to whether there would be a recession.

是的，对于是否会出现经济衰退， 我们真的有点犹豫不决。