vitalKK [ˋvaɪtəl] /ˈvaɪtəl/發音形容詞1極重要的、不可或缺的、關鍵的Getting enough sleep is vital to your long-term health.充足的睡眠對你的長期健康極為重要。2生命的、維持生命所必需的醫學The bullet narrowly missed several vital organs.子彈差一點就打中幾個重要器官。3充滿活力的、生氣勃勃的正式She remained vital and curious well into her eighties.她到八十幾歲仍然充滿活力、對世界感到好奇。