goahead：开始；前进；领先；说吧。例句：We feel you should go ahead.我们觉得您应该干。
例句
1、Go ahead and do what you like.
去吧，喜欢干什么就干什么。
2、He's going ahead fast.
他进展很快。
3、You go ahead and I am coming.
你先走一步,我就来。
4、Food and fodder should go ahead of troops and horses.
兵马未动，粮草先行。