composure

n.

镇静，沉着；头脑镇定或沉着的状态；

1. Keep calm; don't lose your composure.
   保持镇静，不要惊慌失措。
2. She recovered her composure and smiled.
   她恢复了镇静，笑了笑。
3. He could see that she was struggling to preserve her composure.
   他看出她是竭力故作镇定。
4. He showed great composure in difficult situations.
   他在困难环境中表现得极沉着。

Regaining composure: A defense of prototype compositionality
Composure at any cost? The cognitive consequences of emotion suppression.
Awareness of death and the nurse's composure
Protecting professional composure in transcultural pediatric nursing.
Culture and Composure: Creating Narratives of the Gendered Self in Oral History Interviews
"Life is Sweet": Vulnerability and Composure in the Wartime Narratives of Japanese Canadians
Academic resilience and the four Cs: Confidence, Control, Composure, and Commitment
Academic Resilience and the Four Cs: Confidence, Control, Composure, and Commitment
Behaviors of older men living in the community. Correlates producing active composure.
Nonverbal cues and interpersonal judgments: Participant and observer perceptions of intimacy, dominance, composure, and formality.