know (something) backwards and forwards

Другие идиомы:

• know the ropes
• know a trick or two
• know when one is not wanted
• know the score
• know what's what
• know better (than to do something)
• not know the first thing about something
• know (something) by heart
• know (someone or something) like the back of one's hand
• know-it-all
• know (something) only too well
• know one's ABCs
• know which is which
• know one's stuff
• know one's place