【TOEFL核心词汇】No.104 地衣
Hints：只听写例句。前面的单词不用听写。http://t1.g.hjfile.cn/listen/201212/201212200351345444167.mp3The lichen's strong resistance to its hostile environment and its ability to live in harmony with such environments is one example that humanity should consider in trying to solve its own problems.
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