英 [ˌkuːlˈhedɪd]
adj. 头脑冷静的；沉着的
marked by calm self-control (especially in trying circumstances); unemotional
stayed coolheaded in the crisis
同义词： cool / nerveless
头脑冷静的；沉着的
composed / calm / steady
For some student photographers, the hardest part is not overcoming fear, but maintaining the coolheaded stance of an observer in what they feel is their own struggle.
CNN: THE SHARPSHOOTERS
We are taking our steps in a coolheaded manner.
NPR: Turkey Says It Won't Be Drawn Into Syria Conflict