go the extra mile

做额外的工作

A:Do you think I should ask Bob to help? Will he come?

A:你认为我是否可以让鲍勃帮帮忙?他会来吗?

B:No problem. You know him. He's the knid of guy that's always willing to go the extra mile.

B：没问题，你了解他的为人，他是那种助人为乐的热心人。

A:That's right. But I have bothered him several times.

A:没错儿，可是我已经麻烦连他好几次了。

B:I bet he will come.

B:我打赌他一定会来的。