- 1. Spruce bark beetles have boomed in Alaska thanks to 20 years of warm summers.
- 由于20年的暖夏，阿拉斯加的云杉八齿小蠹虫生长的异常旺盛。
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- 2. Spruce bark beetles have boomed in Alaska thanks to 20 years of warm summers.
- 由于20年的温暖夏季，云杉蠹虫在阿拉斯加急速繁殖。
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- 3. In fact, spruce bark beetles have lived in Alaskan forest for nearly hundred years without causing major damage.
- 事实上，杉皮甲虫已经在阿拉斯加森林里生活了近百年，但是从来没有造成严重的灾害。
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- 4. Spruce bark beetles have boomed in Alaska thanks to 20 years of warm summers. The insects have chewed up 4 million acres of spruce trees.
- 阿拉斯加的云杉树皮虫发出隆隆声感谢过去20年暧和的夏天。昆虫已经毁坏掉了4百万英亩的云杉树。
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- 5. Spruce up the landscaping with a few new shrubs, bark mulch and lots of pruning and cleaning.
- 添加一些新的灌木、用树皮覆盖黑土和许多修剪和清洗来装饰环境。
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- 6. Spruce up the landscaping with a few new shrubs, bark mulch and lots of pruning and cleaning.
- 添加一些新的灌木、用树皮覆盖黑土和许多修剪和清洗来装饰环境。
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