keep calm

US /kiːp kɑːm/
UK /kiːp kɑːm/
"keep calm" picture
1.

落ち着く, 冷静を保つ

to remain relaxed and not get excited or worried

:
No matter what happens, just keep calm and carry on.
何が起こっても、ただ落ち着いて続けてください。
It's important to keep calm during an emergency.
緊急時には落ち着いていることが重要です。