keep your head
US /kiːp jʊər hɛd/
UK /kiːp jʊər hɛd/

1.
保持冷静, 沉着
to remain calm in a difficult or stressful situation
:
•
It's important to keep your head during a crisis.
在危机中保持冷静很重要。
•
Even when everything went wrong, she managed to keep her head.
即使一切都出了问题,她也设法保持了冷静。