Producing accurate statistics is not a dispensable moral exercise , but essential for building a solid foundation for economic growth 提供正确的统计数据不是一种可有可无的道德行为，对于建立经济发展的稳定的根基是非常重要的。
“ i ? m a good economic indicator , ” she says , “ i provide a service that people can do without when they ? re concerned about saving some dollars 她说： “我是个不错的经济晴雨表。在人们操心攒钱的时候，我提供的服务就变成可有可无了。 ”
“ i ? m a good economic indicator ， ” she says ， “ i provide a service that people can do without when they ? re concerned about saving some dollars 译文她说： “我是个不错的经济晴雨表。在人们操心攒钱的时候，我提供的服务就变成可有可无了。 ”
The current practice of allowing candidates to register for an exam without purchasing the curriculum sends the wrong message that studying the curriculum is optional 目前的做法允许候选人参加考试而无需购买教材，这传达了教材可有可无的错误信息。
Some years ago , a senior bank executive in charge of public relations ( pr ) asked me for advice on how to justify the activities of his pr department 好几年前，一名主管公关部门的银行高级执行员问我，要怎样证明给人家看，公关部的工作不是可有可无的？
Whereas the subjects , such as arts , music , and physical education seem to be unnecessary , for such subjects are not easily measured through examination 而那些在测验中难以实施的学科，如艺术、音乐、体育等在学校教育中是无关紧要的、可有可无的。
Obviously , you cannot stop feeding someone entirely when they are ill , but there might be nutrients which the patient could do without but the pathogen could not 很明显，你不能在某人生病时让他绝食，但有些营养物对病人可有可无而对病原体却是必须的。
Previously , the minority literature plays an unimportant role in china ' s modem and contemporary literature because there exists a phenomenon of estrangement and unestrangement between them 以往的中国现当代文学中少数民族文学处于可有可无的边缘位置。
We do not want to just follow the tide . we do not want our people to be politically adjudicated by public trials . all different views have the right to be heard 所以我现时对议题的看法，认为是不完善，不大明确和已过时，只是一项可有可无的历史纪录。
Obviously , you cannot stop feeding someone entirely when they are ill , but there might be nutrients which the patient could do without but the pathogen could not 当然，对于一个病人你不可能对他禁食，但是有些营养素对人可能是可有可无的，而对病原菌却是必不可少的。
