今日考研英语单词挑战：
1. Innovative - adj. 创新的，革新的
例句：The company's innovative products have gained a strong market share.
2. Vulnerable - adj. 易受伤害的，脆弱的
例句：The elderly are often vulnerable to health issues.
3. Diverse - adj. 多样化的，不同的
例句：The class had a diverse group of students from various cultural backgrounds.
4. Concise - adj. 简洁的，简明的
例句：Her explanation was concise and to the point.
5. Elaborate - adj. 精心制作的，详尽的
例句：The chef prepared an elaborate five-course meal for the guests.
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