B1
to be happy to do something if it is needed
Dictionary examples:
I'm willing to learn calculus if you explain it using only emojis. (0.0)
My brother is willing to eat vegetables if they're shaped like dinosaurs. (0.0)
Are you willing to sing in the shower for a YouTube video? (0.0)
If you're willing to fly at night, you can get a much cheaper ticket. (42.5)
You said you needed a volunteer - well, I'm willing. (44.3)
Apparently John and Gabriel are willing for us to use their yard. (44.4)