Does anyone know the meaning of "Paris is big but the world is small" in Qian Zhongshu's Fortress Besieged?

just look at the original text. It's all a joke here, which may imply that Mrs. Shen is false and pretentious, and studying abroad is flashy.

hung-chien sat alone next to his wife. As soon as he sat down, he regretted it, because Mrs. Shen had a smell. Both the elegant address in classical Chinese and the ancient Roman idiom used sheep as a metaphor: "I'm afraid." This warm smell, mixed with the fragrance of powder < P > and flowers, made Fang Hong feel full of stomach, but he was embarrassed to smoke to relieve his filth. I thought it was a woman who had just returned from France, and brought the "Smelly Symphony" of Paris's big food market to China, which shows that Paris is big and the world is small. Mrs. Shen

looks strange and dresses up like a demon. Two black bags under her eyes, like round-shell marching thermos bottles, are supposed to store passionate tears, and the thick rouge on her lips spits into her mouth, which stains the dark and rugged teeth with red marks. They are bloody < P > like clues to murder in detective novels, and often say "Tiens!" “Ola，la！” Those French lamented and twisted their bodies into coquetry and softness. When she moved, the smell added a new

array. Hung-chien wished he couldn't tell her. Just say it with your mouth. Be careful not to twist your body in two. Mr. Shen's lower lip is thick and drooping. At first glance, he knows that he is a person who talks a lot and fast, like a diarrhea in his mouth. He was talking about how he publicized the French < P > people's war and how he won many people's sympathy for China: "After Nanking retreated, they all said that China was finished. I said to them,' Didn't your government also move its capital to Paris during the European War? But you

are the final winners.' He has nothing to say, alas, they have nothing to say. "Hung-chien thought the government could move the capital, but he couldn't change his seat.