? Alan Austen, a young man who is passionately in love with Diana who is indifferent to him, comes to the room of a mysterious old man who deals in magic potions. Alan Austen has been told that he can buy a kind of love potion that will make the object of his affection fall madly in love with him. The old man shows litter interest in the financial profit to be gained from selling Alan a love potion which is only priced at one dollar. ? Instead, he devotes most his sales talk to recommending a potion that he calls a life-cleaner, a powerful poison that is undetectable in an autopsy, but more expensive than love potion. He believes that his clients will visit him repeatedly to buy expensive mixtures once they start to get one kind of potion from him. Finally, Alan Austen is convinced that the love potion can bring him deep love and takes it with joy.? Part1:Para 1 In this part, severs as an introduction to the protagonist( pr?ut?g?nist 主人翁), Alan Austen. ? Part2:Para. 2-12: The old man is trying to sell his mixture. ? Part3:Para. 13-45: This part is mainly developed through the dialogue between the old man and Alan Austen. Austen got to know about the love potion and in the end bought it.? This short story, which combines elements of horror and love, is built almost entirely through dialogue between a young man, Alan Austen, who is deeply in love and wants to possess his lover entirely, and an unnamed old man who believes in a life free of romantic involvement. As the dialogue develops, Austens attitude towards the potion changes from skeptical and hesitant to excited and overwhelmed. Readers have been kept in suspense of what will happen to the young man when the story comes to the last line “Au revoir”.? The dialogue between the young man and the old man reveals their essential differences, one being green and passionate and the other being experienced and profound. One of the effective techniques employed here to present the image of the old man as an experienced and profound man is that he sounds somewhat philosophical, hither and thither in his talks. Here is one example. “one might call it a life-cleaner. Lives need cleaning sometimes”. The underlined part in the quotation is used to present an idea one is likely to feel to be nearer to the heart of human experience. By analyzing and generating some specific incident to discover the fundamental truth, the old man impresses one as a wise and sophisticated man. ?What have you learned from the text?conclusion? All the precious things,including love may come to an end.People can easily fall in love and get married,however,what waiting for them may be endless regret.so ,do rememberkeep conscious and be yourself when in love!