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1·They don't really, in their ivory towers, understand how pernicious drug crime is.

身处象牙塔里，他们并不真正懂得毒品犯罪多么有害。《柯林斯英汉双解大词典》

2·The kind of paper that purports to show that people who eat more than one kilo of broccoli a week were 1.17 times more likely than those who eat less to suffer late in life from pernicious anaemia.

这类论文声称，每周吃超过一公斤西兰花的人晚年患恶性贫血的几率是那些吃得少的人的1.17倍。

3·I did what I could, but her mother's influence was pernicious.

我已尽我所能，但她母亲造成的影响是很极为不利的。《柯林斯英汉双解大词典》

4·The impact on macroeconomic policy was equally pernicious.

它对于宏观经济政策同样有害。

5·Work can be one of the most pernicious forms of procrastination.

工作可能是最有害的拖延形式之一。

6·Black carbon has particularly pernicious effects on frozen regions.

黑碳对冰冷地区的影响更有危害性。

7·Now the focus is on inequality itself, and its supposedly pernicious consequences.

现在焦点关注在了不平等这一现象的本身，以及它致命的后果。

8·In short, winter is a tomb, spring is a lie, and summer is a pernicious mirage.

总而言之，冬天是坟墓，春天是谎言，夏天则是险恶的海市蜃楼。

9·Perhaps the biggest worry for the ITF is that technological changes prove pernicious.

ITF最大的担忧恐怕是：事实证明，技术带来的改变是有坏处的。

10·Pernicious deflation, though still unlikely, is no longer an idle risk (see article).

尽管通缩发生的可能性依然不大，但也不再像以前那样显得毫无可能。

(1)pernicious anemian. 恶性贫血