zhè zuò / chéng bǎo / de / chéng qiáng / jiān bù kě cuī / lì jīng / bǎi nián / réng / yì lì / bù dǎo

这座城堡的城墙坚不可摧，历经百年仍屹立不倒。

The castle walls are indestructible and still stand after a hundred years.