a good bit的用法和样例：
- With this job I earn a good bit of money, why should I change it.
- You're getting on fairly well, though you splash a good bit still.
- It can take a good bit of riding to break in a leather saddle.
- He had unfastened his collar and a good bit of his flannel shirt front.
- A stunt man needs to have a good guardian angel.
a good bit的相关资料：