在备考英语二考研的过程中，掌握新增词汇是提升阅读理解和写作能力的关键。以下是一些英语二考研新增词汇及其用法：
1. Prolific - adj. 多产的，富有创造力的
例句：She is a prolific author with over a dozen novels to her name.
2. Ineffable - adj. 无法言喻的，难以表达的
例句：The beauty of the sunset was ineffable.
3. Ephemeral - adj. 短暂的，转瞬即逝的
例句：The love between them was ephemeral, like the first snow of winter.
4. Paradoxically - adv. 相反地，矛盾地
例句：Paradoxically, the more time we spend on social media, the more isolated we feel.
5. Conundrum - n. 难题，复杂问题
例句：The economic conundrum has baffled the experts.
6. Inevitable - adj. 不可避免的，必然的
例句：The rise in sea levels is an inevitable consequence of climate change.
7. Ebullient - adj. 沸腾的，热情洋溢的
例句：He was ebullient about the success of his new business.
8. Pernicious - adj. 有害的，恶性的
例句：The use of plastic bags is pernicious to the environment.
9. Inefficacious - adj. 无效的，不起作用的
例句：The treatment proved to be inefficacious in treating the disease.
10. Euphemism - n. 委婉语，婉转的说法
例句：He used a euphemism when he said that she was "not up to the job".
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