绵亘

mián gèn dōng xī

绵亘东西

stretch from east to west in an unbroken chain

mián gèn nán běi

绵亘南北

lie north and south

zhè cóng lín mián gèn shù yīng lǐ

这丛林绵亘数英里。

This jungle stretches for miles.