to stay calm under stress or provocation
ストレスや挑発の下で冷静を保つ (Sutoresu ya chōhatsu no moto de reisei o tamotsu)
"Even in emergencies, he always keeps his cool."
"緊急時でも、彼はいつも冷静を保っています。" (Kinkyūji demo, kare wa itsumo reisei o tamotteimasu.)
to reach a point where one is physically or mentally exhaust...
To face a final and decisive defeat.
to stop fighting and surrender
to compensate for something
behave in a manner appropriate to your age
someone or something that brings happiness