creep v.爬行；蔓延；慢慢地移动；起鸡皮疙瘩
【真题再现】The percentage of immigrants in the United States has been creeping upward for years.
美国移民的百分比几年来一直在攀升。
【CET-6,2008.12，阅读】
【联想记单词】形近：creed 信条，教义
【活学活用】-The sight of snake makes my flesh creep.
-看到蛇让我起鸡皮疙瘩。
（翻译反白可见哦，Ctrl+A即可~）
critical a.决定性的，关键的；批评的；鉴定的
【真题再现】In addition to pollution and traffic jams,auto safety is a critical issue in developing nations.
在发展中国家，除了污染和交通拥挤，机动车安全也是一个关键性的问题。
【CET-6,2008.12,听力】
【联想记单词】联想：critical 关键的；决定性的
critic 批评家
【活学活用】-I am nervous to deliver the speech!
-Be brave at the critical moment.
-我演讲好紧张！
-关键时候要勇敢。
（翻译反白可见哦，Ctrl+A即可~）
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