composure /kəmˈpoʊʒɚ/ noun Learner's definition of COMPOSURE
[noncount]
: calmness especially of mind, manner, or appearance镇定；沉着 -
She never loses her composure. [=she always appears calm]她总是很镇定。
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He kept/maintained his composure.他保持镇定。
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After the initial shock she regained/recovered her composure.她刚开始吓了一跳，但之后恢复了镇定。
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He answered with composure.他镇定地作答。