Give off 是送出或发出某物,For example:The cooker is giving off a funny smell.锅里冒出一股怪味.Give out 是:1,用完,消耗尽,精疲力竭.For example:After a month their food supplies gave out .过了一个月,他们的食物已消耗殆尽.2,(指发动机等)停止运转,停机,出故障.For example:One of the plane's engines gave out in mid-Atlantic.飞机在大西洋中部飞行时,其中一个发动机出了故障.Give sth:1,分发或发出某物,For example:The teacher gave out the eaxmination papers.教师发了试卷.2,(常用于被动语态)宣布或广播某事:For example:The newsof the President's death was given out in a radio broadcast.总统逝世的消息已在电台上播出了.
