roll off

転がり落ちる

転がって移動し、載っていた面から離れたり落ちたりする。

やさしい英語で： To leave a surface by turning over as you move.

• The ball rolled off the table.
• He rolled off the bed in his sleep.
• Did your pen roll off the desk?

使い方： roll off something (A coin rolled off the counter.)

よく使う表現： roll off something, roll off the table

生産ラインから出る

完成した製品として、工場の生産ラインから出てくる。

やさしい英語で： To leave a factory’s production line as a finished product.

• New cars roll off the line daily.
• The millionth bicycle rolled off the line yesterday.
• When will the first trucks roll off the production line?

使い方： roll off something (The first buses rolled off the assembly line today.)

よく使う表現： roll off the line, cars roll off

転がして下ろす

物を転がしたり車輪で動かしたりして、台や車から下ろす。

やさしい英語で： To remove something from a surface or vehicle by moving it on wheels or turning it over.

• Roll the barrel off the platform.
• The driver rolled off the empty container.
• We rolled the cart off the trailer together.

使い方： roll something off something (They rolled the container off the truck.)

類義語： roll away

よく使う表現： roll off something, roll something off

減衰する

音や信号が、周波数範囲の高い端や低い端で弱くなる。

やさしい英語で： To become weaker at the high or low end of a range of sound or signal frequencies.

• The bass rolls off below this frequency.
• High frequencies rolled off gradually in our measurements.
• Does the signal roll off sharply above this point?

使い方： roll off below/above something (The response rolls off above ten kilohertz.)

類義語： attenuate, decrease

よく使う表現： bass roll off, roll off sharply

失速して横に傾く

片方の翼が先に揚力を失い、飛行機が急に横へ傾く。

やさしい英語で： If a plane does this, it suddenly tilts sideways because one wing loses its lifting force first.

• The aircraft rolled off to the left.
• Some planes roll off sharply during a stall.
• The pilot recovered after the aircraft rolled off.

よく使う表現： aircraft roll off, roll off suddenly