I'm a student from VietNam
I have some questions about words and phrases:
what is the meaning and the use of these 2 phrases:
- to be a stroke of genius (ex: Her idea was a troke of genius - Oxford dictionary 8th edition)
- to be of + subject + genius (ex: a states man of genius - Oxford dictionary 8th edition)
and please tell me if I have applied the right structure in this sentece:
The boyis concern (to be) of mathematical genius
I'm really grateful if anyone can help me.