She gave birth to a boy almost one month before the due date.
她诞生了个男孩，比预产期早了将近一个月。
We had to prepare for the program for about a week before the due date.
我们有该计划的截止日期之前准备一个星期左右。
All assignments are to be received before class on the due date.
所有的作业应当在截止日期前完成。
The action due date must occur on or before the issue due date.
任务截止日期不能晚于问题截止日期。
The action due date must occur on or before the issue due date.
任务截止日期不能晚于问题截止日期。
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