过去分词作定语修饰people,并不是一个句子,可以延伸一下people (who were) trapped in the lift were sad.强调的是人.
而people is trapped in the lift.是一个被动句,强调的是动词.比如下面这个经典的句子:Most of the professors _invited_ to the conference were from Beijing.
过去分词作定语修饰people,并不是一个句子,可以延伸一下people (who were) trapped in the lift were sad.强调的是人.
而people is trapped in the lift.是一个被动句,强调的是动词.比如下面这个经典的句子:Most of the professors _invited_ to the conference were from Beijing.