1. He never loses sang-froid in times of crisis.
他在危急时刻总能够保持冷静。
2. No matter how scare you are, yet you still need to keep calm/sang-froid on facade.
无论你有多害怕，外表上你仍要保持冷静。
3. Her sang-froid in the face of the robbers was marvelled by all.
她面对强盗时所表现的冷静，令所有人都大为赞叹。
4. They showed great sang-froid in dealing with the fire.
他们处理这场火灾时极为镇定。
5. He behaves throughout with a certain sang-froid.
他从头至尾都表现出一定的冷静沉着。