time前面用什么介词

time前面用的介词有：in、on、at、during。
  
  time意思是时间，钟点，时刻。双语例句：Time passed, and still Ma did not appear.时间一点点过去，马先生仍然没有出现。
  
  in time意思是合拍；最终；迟早。双语例句：Wake me up in time.到时叫醒我。
  
  on time意思是准时，按时。双语例句：You must be there on time.你务必要按时到达那里。
  
  at time意思是指定设备执行该命令的时间；指定设备执行本命令的时间；偶而。双语例句：
  The following information was correct at time of going to press.下列信息在付印时准确无误。
  
  during time意思是在这期间。双语例句：There has been no hint of scandal during his time in office.他在任期间没有任何丑闻。