！postpone有被动形式，be postponed中文意思是被延期，被推迟

If the meal must be postponed for more than an hour， a snack helps to avoid a hunger headache.如果吃饭必须推迟一个多小时，吃点零食有助于避免饥饿引起的头痛。

There are rumblings that the election may have to be postponed.