vacuum

掃除機

ほこりや汚れを吸い込んで床などを掃除する機械。

やさしい英語で： A machine that cleans floors and other surfaces by sucking up dust and dirt.

• The vacuum is upstairs.
• Our new vacuum picks up pet hair easily.
• Have you emptied the vacuum’s dust container?

類義語： vacuum cleaner

よく使う表現： vacuum cleaner, upright vacuum, cordless vacuum

真空

空気もその他の物質も存在しない空間。

やさしい英語で： A space that contains no air or other matter.

• Sound cannot travel through a vacuum.
• The experiment takes place in a vacuum chamber.
• A perfect vacuum contains no particles at all.

類義語： vacancy, void

よく使う表現： perfect vacuum, in a vacuum, vacuum chamber

真空、減圧状態

容器の中の圧力が外の空気の圧力より低い状態。

やさしい英語で： A condition in which pressure inside a container is lower than the pressure of the air outside.

• The pump creates a partial vacuum.
• A gauge measures the vacuum inside the vessel.
• The engine’s condenser maintained a steady vacuum.

類義語： reduced pressure

よく使う表現： partial vacuum, create a vacuum, vacuum pressure

掃除機をかける

ほこりや汚れを吸い込む機械で床などを掃除すること。

やさしい英語で： To clean floors or other surfaces with a machine that sucks up dust and dirt.

• I vacuum every Saturday.
• She vacuumed the stairs before the guests arrived.
• Could you vacuum the living room?

類義語： hoover

よく使う表現： vacuum the carpet, vacuum the floor, vacuum something