！across前面加介词from ，from across 中文意思是来自整个..……（地方），从对面
People from across the world gathered in London to hear Big Ben's last chime and some of them even cried， as if they were attending a friend's funeral.
来自世界各地的人们聚集在伦敦，聆听大本钟的最后一次钟声，其中一些人甚至哭了，就像在参加朋友的葬礼一样。
across前面加什么介词
across是介词通常用在动词之后 比如：Can you swim across the bridge ?你能游过那条河吗
可以+介词构成：across from 对面
