...... Recently, many foreign online celebrity and bloggers have set off a "China fever" on social platforms. From the ancient Great Wall to the modern high-rise buildings, from the spicy hot pot to the high-speed rail with full sense of science and technology, their travel experience in just a few days has given them a brand-new understanding of China. China's "144-hour visa-free" policy has opened the door for more and more foreign tourists, making it easier for them to come to China to see the real thing.