I know It' s hard to say in one word的翻译

问题描述:

I know It' s hard to say in one word的翻译

I know !It' s hard to say in one word应该翻译作:
我知道.一言难尽(或:一句话说不清楚).
注释:
in one word:一句话
hard:难的
语法分析:
It作to say in one word的形式主语