be + adj + to do主动表被动中有哪些形容词可以这样用?

Sth is easy to do.或find sth easy to do结构：
“某些形容词+不定式”的结构中,不定式与句子主语有动宾关系时.(常用于此结构的形容词有：difficult,easy,hard,interesting,pleasant,nice,bitter,fit,dangerous,light,heavy,important等)
The picture is pleasant to look at.
The sentence is not easy to understand.
The street was difficult to find on the map.
Good medicine is bitter to taste.
The novel is interesting to read.
The box is too heavy (for you) to lift.

表性质或情况的，如difficult，hard等