essential [ɪˈsɛnʃəl]

例句:

• Jordan promised to trim the city budget without cutting essential services.
  乔丹承诺在不减少基本服务的前提下，缩减市政预算。
  来自柯林斯例句
• Party membership was an essential prerequisite of a successful career.
  成为党员是事业有成必不可少的先决条件。
  来自柯林斯例句
• "Aromatherapy oils" are not pure essential oils but dilutions.
  “香薰精油”并非纯精油，而是经过稀释的。
  来自柯林斯例句
• It is essential to feel at ease with your therapist.
  在治疗师面前放松下来是很重要的。
  来自柯林斯例句
• Polyunsaturated oils are essential for health. Excess is harmful, however.
  多不饱和油对健康很重要。但是，食用过量就会有害。
  来自柯林斯例句