жизненоважен 英語で:

Her vital signs are being closely monitored.

Regular exercise is absolutely vital.

On the other hand, there seem to be those among young folk who, while touching on Buddhism, have started to think of it as a vital spiritual support.

Water is a natural resource of vital importance.

Public opinion plays a vital in the political realm.

That red cloth is a "fukusa"; it is a vital tool used to cleanse the tea equipment.

It is better not to become ill in the first place and early diagnosis is vital.

What conditions are vital for developing film? Dark conditions are vital for developing film.

Some care staff say that they never practise restraint - that it is always wrong under any circumstances. Others say it can be vital, for the resident and themselves

It is vital that you inform me about your progress. It is vital to be honest with your spouse.

It’s vital for pilots and controllers to have good English.

Developing a sucessful strategy is a vital part of the planning process.

Although he's 70 years old, he's still a vital man.

Now that you mention it, I wasn't involved in the decision-making for the vital part.