长三角

cháng sān jiǎo jīng jì fā zhǎn de zhōng xīn fù dì

长三角经济发展的中心腹地

the center of economic development in the Yangtze River Delta hinterland

zhàn jù cháng sān jiǎo dì lì

占据长三角地利

take advantage of regional superiority of Yangtze River Delta