He is a man of ability. (=He is an able man.)
It is a book of no use. (=It is a useless book.)
A thing of beauty is a joy forever. (=A beautiful thing is a joy forever.)
We visited places of historic interest. (=We visited historically interesting places.)
cf. You are at liberty to stay or go. (=You are free to stay or go.)
She was in perfect health. (=She was perfectly healthy.)
<with (in, on, by)+Ãß»ó¸í»ç¡æºÎ»ç>
He has done it with ease.
The child returned home with safety.
He speaks English with great fluency.
She stepped on my foot on purpose.
It was a discovery made by accident.
He was in reality penniless.