[tí qián]
（往前移） shift to an earlier date; move up (a date); bring forward; advance
The time for the strike has been moved up.
罷工的時間提前了。
（事先） in advance; ahead of time; ahead of schedule; beforehand
release [discharge] before the sentence expires
提前釋放
fulfil the plan a month ahead of time
提前一個月完成計劃
convene the congress before the due date
提前召開大會
fulfil [finish] the task ahead of schedule [time]
提前完成任務
If there is any change about the time of the meeting, please notify us in advance.
開會時間如有變， 請提前告訴我們。