- ahead of time
 - 提前;提早
 
参考例子
           - 1.He gave me such good advice that I finished the task ahead of time.
 - 他给我提出了如此好的建议,以致我都提前完成了任务。
 
- 2.Knowing ahead of time how to get out during a fire can save needed seconds.
 - 火灾发生时,预先知道怎样逃出去能够节省必要的时间。
 
- 3.Will we know ahead of time so we can prepare physically and make it easier for ourselves and people around us?
 - 我们将知道在将来的时刻,如此我们能物质上准备而使得为我们自己和我们周围的人们更容易一些?
 
英文解释
           - adv.
 - 1.before the usual time or the time expected
 
网络释义
               - ahead of time
 - 提前; 提前,在原定时间以前; 提早; 事先;
 
- be ahead of time
 - 提前;
 
- ahead of their time
 - 比同时代的人先进; 跑在时代前头;
 
- ahead of scheduled time
 - 提前;
 
- promotion ahead of time
 - 提前晋级;