地道

dì dào kǒu

地道口

entrance to a tunnel

dì dào zhàn

地道战

tunnel warfare

tā men zài dì dào zhōng wān yán qián xíng

他们在地道中蜿蜒前行。

They wriggled their way through the tunnel.

guò jiē dì dào li tú mǎn le luàn qī bā zāo de tú huà hé wén zì

过街地道里涂满了乱七八糟的图画和文字。

The subway was covered in graffiti.