Act II
第二幕

Max teaches the children how to sing on stage. When the Captain tries to lead them, they complain that he is not doing it as Maria did. He tells them that he has asked Elsa to marry him. They try to cheer themselves up by singing "My Favorite Things", but are unsuccessful until they hear Maria singing on her way to rejoin them. Learning of the wedding plans, she decides to stay only until the Captain can arrange for another governess. Max and Elsa argue with him about the imminent Anschluss, trying to convince him that it is inevitable ("No Way to Stop It"). When he refuses to compromise, Elsa breaks off the engagement. Alone, the Captain and Maria finally admit their love, desiring only to be "An Ordinary Couple". As they marry, the nuns reprise "Maria" against the wedding processional.
马克思教孩子们如何在台上唱歌。当上校试图指挥他们的时候，孩子们抱怨他和玛利亚做的不一样。上校告诉他们他向艾尔莎求婚了。孩子们想要唱一曲“我的最爱”高兴起来，但是并不成功，直到他们听到玛利亚一路唱着歌再次加入到他们中间。听说了婚礼的计划后，玛利亚决定留下来，直到上校找到另一位女家庭教师代替她。马克思和艾尔莎和上校为了即将来临的德奥合并争执起来，两人试图让上校接受合并（“没什么能够阻止这一切了”）。当他拒绝妥协后，艾尔莎解除了订婚。上校和玛利亚终于独处后，两人都承认了对彼此的感情，并表达了想要成为“一对平凡的夫妻”的愿望。在他们结婚时，修女们在婚礼入场式上重奏了“玛利亚”。

During the honeymoon, Max prepares the children to perform at the Kaltzberg Festival. Herr Zeller, the Gauleiter, demands to know why they are not flying the flag of the Third Reich now that the Anschluss has occurred. The Captain and Maria return early from their honeymoon before the Festival. In view of developments, he refuses to allow the children to sing. Max argues that they would sing for Austria, but the Captain points out that it no longer exists. Maria and Liesl discuss romantic love; Maria predicts that in a few years Liesl will be married ("Sixteen Going on Seventeen (Reprise)"). Rolf enters with a telegram that offers the Captain a commission in the German Navy and Liesl is upset to discover that Rolf is now a committed Nazi. The Captain consults Maria and decides that they must secretly flee Austria.German Admiral von Schreiber arrives to find out why Captain Von Trapp has not answered the telegram. He explains that the German Navy holds him in high regard, offers him the commission, and tells him to report immediately to Bremerhaven to assume command. Maria says that he cannot leave immediately, as they are all singing in the Festival concert, and the Admiral agrees to wait until after it.
两人蜜月期间，马克思为孩子们打理准备参加Kaltzberg节。纳粹德国的地方长官泽勒先生要求他们说出，既然德奥合并了，为什么他们没有升起第三帝国的国旗。在Kaltzberg节前，上校和玛利亚就提早结束了蜜月之旅。看着事态发展，上校拒绝让孩子们唱歌。马克思建议他们可以为奥地利歌唱，但是上校指出奥地利已经部存在了。玛利亚和莉斯尔谈论着浪漫的爱情；玛利亚预测几年内莉斯尔将结婚（再次响起“从16岁到17岁”）。罗尔夫带着一份电报走进来，电报写着交给上校一份德国纳粹交代的任务，莉斯尔很慌张地发现罗尔夫已经效忠于纳粹了。上校和玛利亚商量后决定他们悄悄地逃到奥地利去。德国海军上将冯施赖伯跑来质问冯·特拉普上校为何没有答复电报。他对上校说道，德国纳粹很重视他，才把这个任务交给他，并要求他尽快到不来梅港报道。玛利亚说上校不能马上赴任，因为他们都要在Kaltzberg的音乐会上表演唱歌，海军上将同意等到音乐会结束。

At the concert, after the von Trapps sing an elaborate reprise of "Do-Re-Mi", Max brings out the Captain's guitar. Captain von Trapp sings "Edelweiss", as a subliminal goodbye to his homeland, while using Austria's national flower as a symbol to declare his loyalty to the country. Max asks for an encore and announces that this is the von Trapp family's last chance to sing together, as the honor guard waits to escort the Captain to his new command. While the judges decide on the prizes, the von Trapps sing "So Long, Farewell", leaving the stage in small groups. Max then announces the runners-up, stalling as much as possible. When he announces that the first prize goes to the von Trapps and they do not appear, the Nazis start a search. The family hides at the Abbey, and Sister Margaretta tells them that the borders have been closed. The Nazis do not find them until Rolf comes upon them. He calls his lieutenant, but upon seeing Liesl, he reports that he has found no one. To help them flee, the nuns have secretly sabotaged the cars of the Nazis. The Von Trapps flee over the mountains (the Alps) as the nuns reprise "Climb Ev'ry Mountain".
在音乐会上，冯•特拉普上校精心改编并翻唱了《Do-Re-Mi》，马克思带来了上校的吉他。冯•特拉普演唱了一曲《雪绒花》，意为引用奥地利的国花来表露他对祖国的忠诚，并暗藏了对故乡的告别。马克思要求他再唱一曲，并且宣布这是特拉普家族最后一次一同唱歌了，因为仪仗队正在等待迎接上校接任他的新任务。当评审们讨论奖项归属时，特拉普唱了一曲《别了，再见》，和一小部分人一同退场了。马克思随后尽可能拖延地宣布了第二名。当他宣布到第一名属于特拉普时，他们并没有上台领奖，纳粹开始搜寻他们。特拉普一家藏在修道院里，玛格丽塔修女告诉他们边关已经关闭了。纳粹们没有找到他们，直到罗尔夫出现。他叫来了中尉，但是一看到了莉斯尔，他便报告说他谁都没找到。为了帮助他们逃跑，修女们悄悄地妨碍了纳粹的车辆。特拉普一家从山坡（阿尔卑斯山）上逃跑了，修女们重新唱起了《越过Ev'ry山》。