Transport of the future

1.prevalent: exist very commonly and or happening often 普遍的:盛行的
Eg: The disease are more prevalent among young children.

2.far-fetched: very unlikely to be true,and difficult to believe.難以置信的
Eg: a far-fetched story.

3.levitation:the act of rising and floating,or making someone rise or float in the air without any physical support.漂浮
Eg: One of his most famous illusion was levitation,in which he cause his wife to rise from the stage.

4. recap: to repeat the main point of an explanation or description.整理重點
Eg: Finally, the teacher recapped the main points of the lesson.

5.vacuum: a space from which most or all of the matter has been removed,or where there is little or no matter.真空
Eg: The withdrawal of troops from the area has created a security vacuum which will need to be filled.