B1
to need or demand something
Dictionary examples:
Waking up on Monday mornings requires superhuman strength. (0.0)
Understanding my teacher's handwriting requires a secret decoder ring. (0.0)
Cooking without burning the kitchen down requires a fire extinguisher. (0.0)
Call this number if you require more information. (20.9)
Training to be a doctor requires a lot of hard work. (26.0)
If you require assistance with your bags, I’ll be glad to get someone to help you. (41.6)
A building permit is required. (43.9)
Skiing down a steep slope requires total concentration. (46.0)