period delay

例句：

1. 1. Theproject's progress has been delayed dueto unforeseen circumstances.
   由于不可预见的情况，项目的进度被推迟了。
2. 2. Thedelay in the delivery date has caused significantconcern among customers.
   交货日期的延迟引起了客户的严重关切。
3. 3. Due to the weather conditions,the construction work was delayed by two weeks.
   由于天气条件，施工工作被推迟了两周。