vacuum pump[机]真空泵
in a vacuum似在真空中
2.It may be your perception that there are leadership vacuums, but there are bodies in those positions with big egos and loud mouths.
你的看法或许如此:有领导层的空缺,但也有些狂妄自大,张嘴说大话的机家伙在这些位置上。
3.Mount central vacuums on a wall away from the grooming area so only the overhead vacuum hose is in the area where you'll be working.
把中央吸尘器装在一堵远离梳洗区的墙上,这样的话,架空吸尘器的排气管就可以正好放在你将要工作的地方。
4.Because it cleans under beds, couches, and other hard-to-reach areas, it actually vacuums more of the floor than a standard upright.
因为它是根据清洁床,沙发,及其他难以到达的地区,它实际上是真空的地板超过标准的直立。