| 释义 |
es.sen.tialI5sen7tF[ladjnecessary; needed必需的;必不可少的Government support will be essential if the project is to succeed.若要项目成功，政府支持是必不可少的。Only the ambassador and five essential staff will remain in the embassy.只有大使和5位必要的工作人员将留在大使馆。There is essential work to be done before the building can be re-occupied.重新入住楼房之前有些必要的事待做。Maintaining standards is essential to our good reputation.坚持标准对于我们良好的声誉是必不可少的。Water is essential for/to living things.水为生物所必需。It is essential (that) our prices remain competitive. [+ (that) clause]使我们的价格保持竞争力很要紧。For the experiment to be valid, it is essential to record the data accurately. [+ to infinitive]为使实验有效，精确地记录数据必不可少。Cooperation is an essential element/ingredient in any marriage.同心协力是任何婚姻的必要要素/成分。Some theorists would say that exams are not an essential part of education.一些理论家会说，考试不是教育的必要部分。An essential oil is an oil, usually with a strong smell, which is taken from a plant and is used to make PERFUME, or for rubbing into a person's body during MASSAGE.(香)精油Lavender, peppermint, and jasmine are essential oils which are widely available.熏衣草油、薄菏油和茉莉油是到处都可买到的香精油。Essential oils are used in aromatherapy to improve physical and mental well-being.香精油用于芳香疗法中，用于改善身体和精神健康。Essential services are basic public needs, such as water, gas and electricity, which are often supplied to people's houses.公用事业（指水、煤气、电力供应）设施
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