Jack - Shenzhen

Jack is from Shenzhen. I went to Wikipedia and found this information about Shenzhen.

Shenzhen (IPA: [ʂə́ntʂə̂n]) is a major city in the south of Southern China's Guangdong Province, situated immediately north of Hong Kong. Since the late seventies, both Chinese and foreign nationals have invested enormous sums in the economy of Shenzhen. More than US$30 billion in foreign investment has gone into both fully foreign owned and joint ventures, initially mainly in manufacturing but recently increasingly in service industries. Shenzhen is now reputedly one of the fastest growing cities in the world. Being southern mainland China's major financial centre, Shenzhen is home to the Shenzhen Stock Exchange as well as the headquarters of numerous high-tech companies. Shenzhen is also the third busiest container port in China, ranking only after Shanghai and Hong Kong.
Shenzhen is located in the Pearl River Delta, bordering Hong Kong to the south, Huizhou to the north and northeast and Dongguan to the north and northwest. The municipality covers an area of 2,050 square kilometres (792 sq mi) including urban and rural areas, with a total population of 14 million in 2008.
Shenzhen is situated in the subtropical part of China, located at about the Tropic of Cancer, yet due to the Siberian anticyclone, has a warm, monsoon-influenced, humid subtropical climate (Köppen Cwa). Winters are mild and relatively dry, due in part to the influence of the South China Sea, and frost is very rare. Spring begins somewhat dry, but rainfall begins to dramatically increase in April, and the rainy season lasts until early to mid October. The monsoon reaches its peak intensity in the summer months, when the city also experiences very humid, and hot, but moderated, conditions.