dí / jūn / yǐ / jīng / bī / jìn / chéng / mén / shǒu / jūn / de / chǔ / jìng / kě / wèi / shì / wēi / lěi / luǎn敌军已经逼近城门,守军的处境可谓事危累卵。With the enemy forces closing in on the city gate, the defenders are in an extremely precarious situation.