新视野大学英语2读写第三版第四单元课文详细讲解？

新视野大学英语2读写第三版第四单元课文详细讲解？

Part I (Para.1) An army officer was waiting for a young lady who he had never seen before but filled a special place in his heart. Part II (Paras.2~4) It is her letter that nourished him and gave him courage. And they have affection for each other through correspondence. Part III (Paras.5 ~14) The army officer managed to sustain her test of true love and they found their true love finally.