She insists that it's exposing workers to unnecessarily high doses of radiation.
出自-2011年6月听力原文
柯林斯高阶英汉双解学习词典释义
ADJ-GRADED
不需要的;没必要的;多余的
If you describe something as unnecessary, you mean that it is not needed or does not have to be done, and is undesirable.
例句
The slaughter of whales is unnecessary and inhuman...屠杀鲸鱼是没有必要的也是不人道的。He accused Diana of making an unnecessary fuss.他责备黛安娜没必要那么大惊小怪。
英汉词典释义
adv.
不必要地;多余地;不需要地
I don’t want to invade your private life unnecessarily.我不想过多地干涉你的私生活。The decision by the headmaster was called in doubt by some of the teachers who thought it unnecessarily harsh.有些教师对校长的决定存有异议,他们认为没有必要那么严厉。Some parents worry unnecessarily about their children.有些父母不必要地为孩子担心。The report paints an unnecessarily bleak picture of the town.这份报道把这个镇子描绘得过于惨淡。