求翻译：汕头经济特区经过三十年建设发展，基础设施日臻完善，发展环境不断优化。汕头历来是粤东、赣东南、闽西南通往海外的重要通道，是长三角、珠三角和海峡西岸经济区的重要连接点。汕头是全国45个公路主枢纽城市之一，高速公路、国道、省道组成的公路网四通八达，在中心城区交汇形成公路网络主骨架。目前正规划建设的四条高速公路，将形成汕潮揭1小时经济生活圈。是什么意思？

Shantou Special Economic Zone after three decades of construction and development, improving infrastructure, optimize the development environment. Shantou, Guangdong has always been, Jiangxi southeast, southwest Fujian important channel leading to overseas, the Yangtze River Delta, Pearl River Delta

shantou special economic zone after 30 years of construction, development, infrastructure development, the environment, perfect Continuous Optimization. Shantou has always been an east Guangdong, Jiangxi, Fujian southeast gateway to overseas an important route to the south-west, is a long 3 point 3

The Shantou special economic zone passes through 30 year construction development, the infrastructure better and better, the development environment optimizes unceasingly.Shantou always is southeast Guangdong Province, Jianxi, the West Fujian province Nantong toward the overseas important channel, i

Shantou special economic zone after 30 years of construction and development, infrastructure will continue to improve, develop environment continues to be optimized. Shantou has always been South-East of East Guangdong, Jiangxi, zhongjia leads to important channel for overseas, is the Yangtze River

The Shantou special economic zone passes through 30 year construction development, the infrastructure better and better, the development environment optimizes unceasingly.Shantou always is southeast Guangdong Province, Jianxi, the West Fujian province Nantong toward the overseas important channel, i