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1)unscrupulous adj. without moral principles 无道德原则的; 不讲道德的: unscrupulous methods, behaviour 不道德的方法、 行为
* He was utterly unscrupulous in his dealings with rival firms. 他与对立公司竞争完全不讲道德.
2)scruple v 出现(对事物是否正当的良心上的)顾虑、考虑或顾忌
I was aware that many men who have accumulated more millions of money than they can ever use have shown a rabid hunger for more,and have not scrupled to cheat the ignorant and the helpless out of their poor saving in order to partially appease the appetite.