要塞 yàosài fortress Definitions Defs Origin Strokes Stroke Words Sentences Sents 2 sentences 欢迎来到要塞。 huānyíng lái dào yàosài. Welcome to the fortress. Source: CCMatrix莫斯科本身被改造成了一个要塞。 mòsīkē běnshēn bèi gǎizào chéng le yīge yàosài. Moscow itself was transformed into a fortress. Source: CCMatrix