chéng / qiáng / shàng / liú / zhe / jǐ / gè / qiāng / yǎn / shì / bīng / kě / yǐ / cóng / lǐ / miàn / xiàng / wài / shè / jī

城墙上留着几个枪眼，士兵可以从里面向外射击。

There are several loopholes in the city wall through which soldiers can fire outward.