not know the first thing about something
не иметь основных знаний о чём-либо
Jack wants to buy a car, but I am sure he does not know the first thing about cars.
Другие идиомы:
- know one's stuff
- know-it-all
- know (something) in one's bones
- know better (than to do something)
- know when one is not wanted
- know one's place
- know all the tricks of the trade
- know (something) by heart
- know (something) from memory
- know (someone) by sight
- know (something) only too well
- know the ropes
- know one's ABCs
- know one's own mind
- know which is which