live on

を食べて生きる、を主食にする

特定の食べ物や飲み物をとって生きていくこと。

やさしい英語で： To stay alive by eating or drinking a particular kind of food or drink.

• You cannot live on sweets alone.
• They lived on rice and beans during the winter.
• What do these tiny animals live on?

使い方： live on something (The stranded hikers lived on berries for several days.)

類義語： subsist on, survive on

よく使う表現： live on something, live on rice

で生活する、で暮らす

決まった金額や特定の収入で生活に必要な費用をまかなうこと。

やさしい英語で： To pay for your needs using a particular amount or source of money.

• We live on my salary.
• He lived on his savings while looking for work.
• Could you live on that much money each month?

使い方： live on something (She lives on a small pension.)

類義語： get by on, subsist on

よく使う表現： live on something, live on savings

生き続ける、残り続ける

死後や長い時間がたっても、存在や記憶が残り続けること。

やさしい英語で： To continue to exist or be remembered after a death or after a long time.

• Her memory lives on.
• The old traditions lived on in remote villages.
• His music will live on long after his death.

使い方： live on in/through something (His memory lives on in the stories his children tell.)

類義語： endure, survive, last

反対語： disappear

よく使う表現： live on forever, live on through something

上で定義される

関数が、入力の属する集合や空間の上で定義されていること。

やさしい英語で： If a mathematical function exists on a particular set or space, that is where its inputs belong.

• The function lives on the real line.
• These functions live on a curved surface.
• Which space does this mathematical object live on?

使い方： live on a set/space (This function lives on the unit interval.)

類義語： be defined on

よく使う表現： live on something, live on manifolds