ahead

形容词 ahead:

1. having the leading position or higher score in a contest
   同义词：in the lead, leading

副词 ahead:

1. at or in the front
   同义词：in front, before
2. toward the future; forward in time
   同义词：forward
3. in a forward direction
   同义词：onward, onwards, forward, forwards, forrader
4. ahead of time; in anticipation
   同义词：in advance, beforehand
5. to a more advanced or advantageous position
6. to a different or a more advanced time (meaning advanced either toward the present or toward the future)
7. leading or ahead in a competition
   同义词：out front, in the lead

1. By doing extra homework, he soon got ahead of his class-mates.
   他靠多做家庭作业，很快在班上名列前茅。
2. The man on the watch cried out: "Dangers ahead!"
   守望的人突然大喊:"前面有危险!"
3. Joan ran ahead to film us as we crossed the bridge.
   我们过桥时，琼跑到前面为我们拍照。
4. China is striding ahead in her economic construction.
   中国正在经济建设方面大步前进。
5. He will be ahead of others in English.
   他在英语方面将超过别人。
6. He ran on ahead.
   他跑在前面。