一个字也看不懂和只看得懂一个字和有一个字看不懂用英语怎么说
问题描述：
一个字也看不懂和只看得懂一个字和有一个字看不懂用英语怎么说
答
i don't know any word.
i only know one word.
there is one word that i don't know.
答
understand none of these words
understand only one word
don't understand one of these words