square one's shoulders

Translations
(кто-то) собраться с духом
Before the big presentation, he took a deep breath and squared his shoulders.
Перед важной презентацией он глубоко вздохнул и собрался с духом.
Definitions
To stand or sit up straight with the shoulders pulled back, often as a sign of determination, confidence, or readiness to face a challenge.
Words
square

verb
расправить
one's

article or possessive pronoun
свои
shoulders

noun
плечи