1. 突然下帆：independence of random variables 随机变量的独立性 | strike sail 突然下帆 | actophilous 栖海岩栖海岸的
2. 突然下帆, 收帆 认输, 承认不行; 减少排场：spread the sails 张帆 | strike sail 突然下帆, 收帆 认输, 承认不行; 减少排场 | trim one's [the] sails to the wind 随风使帆; 见风转舵; 随机应变
1. Never strike sail to a threat.
绝不要在威胁面前退缩。
2. As long as the idea of peace can strike deep roots and the sail of peace can be hoisted in the hearts and minds of people all over the world, a strong defense will be constructed to prevent and stop war.
只要世界人民在心灵中坚定了和平理念、扬起了和平风帆，就能形成防止和反对战争的强大力量。