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環(huán)保主題英語ppt課件(編輯修改稿)

2025-02-11 02:48 本頁面
 

【文章內(nèi)容簡(jiǎn)介】 ern Thailand settle down to a feast of banana trees, sugarcane and fruit in celebration of National Elephant Day Beetlemania. In recent years, mountain pine beetles (shown) have been emerging earlier in the summer, spelling bad news for the pine trees they infest and kill (upper left). Credit: Jeffry Mitton Charles Darwin (18091882)
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