bepresentat英文

be present at存在于(出现于)Viruses may be present in tapwater.病毒可以存在于自来水中。Aerosols are present throughout the atmosphere.气溶胶存在于整个大气层。be present in存在于(出现于)Viruses may be present in tapwater.病毒可以存在于自来水中。Aerosols are present throughout the atmosphere.气溶胶存在于整个大气层。

这个是后置定语。不是构成主谓关系。真正的谓语是后面的were

因为这句话的谓语“were“在后面啊，所以这里用present 短语作后置定语，如果使用完整的be present at 的话因为它本身就包含了谓语动词be， 后面就不能再出现谓语了。

楼主好, The experts present at the meetingwere from different parts of the world. The experts present at the meeting 做主语. prensent at the meeting做定语,省略了who/that. were.写完整其实就是The experts who were present at the meeting were from different parts of the world.若有疑问及时追问，满意敬请采纳，O(∩_∩)O谢谢~~