random a.任意的；胡乱的；随机的 n.随意
【真题再现】When a psychologist does a general experiment about the human mind,he selects people at random and asks them questions.
当一个心理学家做一个关于人类心智的普通实验时，他随机地选人并向他们问题。
【CET-6,1997.01，词汇】
【联想记单词】联想：ran(跑)+dom(领域)→可以在各种领域跑→任意的
【活学活用】-Ha-ha,wonderful three points!
-How can you collect my clothes at random!
-哈哈，好棒的三分球！
-你怎么可以任意地收集我的衣服！
（翻译反白可见哦，Ctrl+A即可~）
rational a.合理的；理性的，理智的 n.有理数
【真题再现】It's reasonable to take a rational dose of multivitamins daily.
每天摄入适量的多种维生素很合理。
【CET-6,2003.12，阅读】
【联想记单词】联想：rate（n.比率）→ration(v.定量供应；配给)→rational (a.合理的，理智的)
【活学活用】-Man is a rational being,but dog is not...
-人类是理性的动物，但狗不是...
（翻译反白可见哦，Ctrl+A即可~）
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