她在危机中表现出了非凡的冷静。

She displayed remarkable ___coolness during the crisis.

一定的冷静对于处理压力情境是必不可少的。

A certain ___coolness is essential to handle stressful situations.

他在谈判中的冷静常常带来有利的结果。

His ___coolness in negotiations often leads to favorable outcomes.