operate

操作する

機械や装置を操って、必要な仕事をさせる。

やさしい英語で： To control a machine or piece of equipment so it does its job.

• Can you operate this machine?
• She learned to operate the crane safely.
• Only trained staff may operate this equipment.

類義語： use, control, run

よく使う表現： operate a machine, operate a crane, operate something safely

事業を行う、経営する

ある場所や方法で事業を行う、または会社などを経営する。

やさしい英語で： To work or do business in a particular place or way.

• The company operates in France.
• They operated a small shop together.
• Several charities operate under the same roof.

使い方： operate in somewhere (The charity operates in several countries.); operate under something (The company operates under a new name.)

類義語： work, do business, run

よく使う表現： operate in somewhere, operate a business, operate under something

作動する、稼働する

機械が動いて、いつもの仕事をする。

やさしい英語で： If a machine does this, it works and performs its usual job.

• The machine operates quietly.
• This device operates on two batteries.
• Will the system operate at low temperatures?

使い方： operate on something (The radio operates on battery power.)

類義語： work, function, run

よく使う表現： operate smoothly, operate on batteries, operate independently

手術する

病気やけがを治すために、体を切って処置をする。

やさしい英語で： To cut into someone’s body to treat a disease or injury.

• The doctors must operate immediately.
• A surgeon operated on her knee.
• Will they need to operate again?

使い方： operate on someone/something (The surgeon operated on his injured leg.)

類義語： perform surgery

よく使う表現： operate on someone, operate on something, operate immediately, operate again

機能する、作用する

ある仕組みで働いたり、何かに効果を及ぼしたりする。

やさしい英語で： To work, act, or have an effect in a particular way.

• How does this system operate?
• The rule operates differently in practice.
• Several forces operate together to shape the result.

使い方： operate through something (The scheme operates through a network of local groups.)

類義語： work, function, act

よく使う表現： operate effectively, operate in practice, operate through something