containment
n [U] keeping sth within limits, so that it cannot spread harmfully 阻止; 遏制
Until we'd built up sufficient forces to drive the invaders back, we pursued a policy of containment. 我們對入侵之敵采取牽制的方針, 以備組織好兵力將之擊退.
Perhaps in those days I was. Pierre and I did have a very good time at the ball. But that was the last moment of happiness in our lives. That night everything changed.