Hello , Mr . Brown , long time no see . Where have you been ?   Oh , I went on a holiday in the city of Chende .   Great . What do you think of it ?   The city is small , not very modern , but there are many mountains with lots of trees around the city , so the air there is pretty fresh .   Did you go to the Summer Mountain Resort ?   Certainly ! The most attractive place is that , it's very large ; it is 8 times the size of Forbidden City and 16 times the size of Summer Palace . The art of gardens is perfectly represented in it .   It sounds great , and is it really cool there ? 