# nonessential ##### 词义 - 英：/ˈnɒnɪˈsɛnʃəl/； 美：/ˌnɑnɪˈsɛntʃəl/ - #词性/adj 不重要的；非必要的；非本质的；<生化>（氨基酸）非必需的 - #词性/n 不重要的人 (或物) , 可有可无的人 (或物) ##### 例句 - The nonessential amino acids were markedly reduced . - 非必须氨基酸明显减少。 - Designed for taking over Beijing 's functions nonessential to its role as the national capital , the city proper will be a new home for Beijing 's colleges , research institutes , hospitals , business headquarters , and financial and public institutions . - 未来，起步区将是北京疏解出的高校、科研院所、医疗机构、企业总部、金融机构、事业单位等的集中承载区。 - Residents are urged to carefully plan their trips for the New Year and Spring Festival holidays , reduce unnecessary travel , and avoid nonessential outbound travel as well as travel to medium － or high-risk areas in the country . - 减少不必要出行提醒广大游客，元旦、春节期间合理安排行程，减少不必要出行，非必要不安排出境旅游，不要前往国内中高风险地区旅游。