The bad weather set back the building programme by several weeks.

天气恶劣，建筑计划延误了几个星期。

This organization warns this progress could be set back if measures are not taken to reverse the rise in obesity among young people.

该机构提醒，如果不采取措施逆转年轻人中不断增加的肥胖情况，这种进展可能会倒退。

Never give up, Never set back.

永不放弃永不退缩。

The second trail was set back half an hour.

第二次审讯推迟了半个小时。

The accident set back the plan by one week.

这件意外使得计划延后一星期。