If you say that something is vital, you mean that it is necessary or very important.
connected with or necessary for staying alive 生命的；维持生命所必需的
the vital organs (= the brain, heart, lungs, etc.)
重要脏器
If you say that something is vital, you mean that it is necessary or very important.
connected with or necessary for staying alive 生命的；维持生命所必需的
the vital organs (= the brain, heart, lungs, etc.)
重要脏器