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。