in front of or before
在…前面，在…之前
she walked ahead of him along the corridor.
她沿着走廊在他前面走。
innovative and radical by the standards of the time; more characteristic of a later age
超前的，比所处时代激进的；更具未来时代特征的
To be winning or in a superior position
领先，占优势
The home team was ahead in the second period. Your company is ahead in developing the new technology.
主队在第二阶段的比赛中处于领先。你们的公司在发展新科技方面处于领先地位