sang-froid

1. He behaves throughout with a certain sang-froid.
   他从头至尾都表现出一定的冷静沉着。
2. They showed great sang-froid in dealing with the fire.
   他们处理这场火灾时极为镇定。
3. He faced the attack with amazing sang-froid.
   他镇定地面对攻击。

noun

1. great coolness and composure under strain
   1. keep your cool

   Synonym:    aplombassurednesscoolpoise