/ɪˈsenʃl ||; əˈsɛnʃəl/adj
completely necessary; that you must have or do 基本的;必需的:
essential medical supplies基本的医疗物资Maths is essential for a career in computers.做计算机这一行数学基础一定要好。It is essential that all school-leavers should have a qualification. 对于刚刚离开学校的年轻人来说,学历是非常重要的。 essentialnoun [C] [usu.pl]
food, and other essentials such as clothing and heating食物和其他必需品,如衣服和暖气