Definition: in a way that is very willing Level: B2
如果她知道有需要，她会很乐意去做志愿者。
She'd ___happily volunteer if she knew it was needed.
大多数顾客会非常愿意为更好的服务多付一点钱。
Most customers would ___happily pay a little more for better service.
如果您认为我准备好了，我会非常乐意承担更多责任。
I'd ___happily take on more responsibility if you think I'm ready.
