Vacuum
01
吸尘器, 电动吸尘器
an electrical appliance that cleans surfaces by suction
例子
The vacuum picked up all the dust and crumbs.
吸尘器吸走了所有的灰尘和碎屑。
02
真空, 空白区域
an empty area or gap in a physical sense
例子
There was a vacuum in the room where furniture had been removed.
家具被搬走的房间里有一个真空。
例子
The concept of a perfect vacuum, where no particles or energy exist, is theoretical and is used in thought experiments and theoretical physics.
完美真空的概念，即没有任何粒子或能量存在，是理论性的，用于思想实验和理论物理。
04
真空, 空白
a gap, lack, or absence in a situation, system, or abstract context
例子
A vacuum of authority allowed confusion to spread.
权威的真空让混乱得以蔓延。
