to be no fool
01
簡単にはだまされない, 馬鹿ではない
to avoid foolish actions through wisdom and good judgement
![to [be] (no|nobody's|no one's) fool definition and meaning](https://cdn.langeek.co/photo/42360/original/?type=jpeg "to [be] (no|nobody's|no one's) fool definition and meaning")
idiom
例
He's been in the business for years and knows all the tricks. He's no fool when it comes to negotiations.
彼女は簡単にはだまされず、悪い契約にはサインしない。
