hard-and-fast rule

Другие идиомы:

• hard of hearing
• hard on (someone's) heels
• hard sell
• hard to call
• hit (someone) hard
• as hard as nails
• hard on (someone or something)
• hard feelings
• hard-nosed
• hard-pressed
• hard up
• hard nut to crack
• hard to stomach (someone or something)
• to be hard on (someone's) heels
• hair of the dog that bit one