forewarned例句

The Macmillan Guide had forewarned me of what to expect.
《麦克米伦指南》已经事先告诫过我会遇到什么情况。

The commander had been forewarned of the attack.
指挥官预先得到敌人要发动袭击的警告。

To be forewarned is to be forearmed.
事先得到警告即先有了准备.