作者用“更艰巨的挑战之一”来暗示森林可能成为一个潜在威胁。
By saying "one of the harder challenges", the author implies that forests may become a potential threat.
清除淤泥，发现鱼类产卵的砾石层，找到合适的鲑鱼种类来重建种群是一项艰巨的任务。
Removing the mud, uncovering gravel beds where fish spawn, and finding suitable salmon types to rebuild the population is a daunting task.
复兴罗马尼亚经济将是一项长期艰巨的工作。
她认为他身体不是很好，不能执行如此艰巨的任务。
She didn't think that he was well enough to carry out such an exacting task.
给这些树浇水对一个人来说是一项艰巨的任务。
这个穿蓝衣服的人太年长了，不能在这么短的时间内完成这项艰巨的任务。
The man in blue is too old to finish the difficult task in such a short time.
学生们必须在同一批高年级学生面前完成一项艰巨的心算任务。
Students had to complete a difficult mental math task in front of the same upper-year students.
他们有一项艰巨的任务，那就是告诉他们的孩子妈咪或爹地得了癌症。
They are faced with the terrifying task of telling their children that mommy or daddy has cancer.
森林为我们提供了阴凉、宁静的环境并带给我们对抗气候变化的一个更艰巨的挑战。
Forests give us shade, quiet and one of the harder challenges in the fight against climate change.
而这将是一个艰巨的任务。
这是一个非常艰巨的事业。
据辛格尔说，他艰巨的一面不是收集数据。
Its most daunting aspect, according to Singhal, is not collecting the data.
但Gowalla公司正面临艰巨的挑战。
相反，“北京模式”则完成了艰巨的任务。
一次性全面采用SOA可能是一项艰巨的任务。
这意味着，与互联网水军的战斗将是漫长而艰巨的。
And that means, the battle ahead with the Internet Water Army will be long and hard.
但是现在我们所面临的艰巨的斗争是什么？
但做翻修工作却可能是一项异常艰巨的任务。
扩大就业是我国当前和今后长时期重大而艰巨的任务。
The task of increasing employment is arduous now and will remain so for a long time to come.
甚至不理会所谓的强盗式资本家，这项任务将是艰巨的。
Even setting aside its alleged robber baron, this will be tough.
如果之前你从未安装过操作系统，那么这可能是相当艰巨的。
If you've never installed an operating system before, it can be quite daunting.
这是一个艰巨的任务，而且我对此研究在方法层面便存有担心。
It's a hard assignment to pull off, and I have some methodological concerns with the study.
曼城拥有同样的野心，下场客站比利亚雷尔则是更艰巨的任务。
Manchester City still harbour that ambition too, and face a more difficult task away to Villarreal.
搜索特定类型的PD F文件可以是一个艰巨的任务。
Searching for a specific type of PDF document can be a daunting task.
非洲人民正在为争取非洲的彻底解放进行着艰巨的斗争。
The people of Africa are waging a hard struggle to win the complete emancipation of the continent.
世界历史上最艰巨的工程项目将在地球之外的火星上进行。
The most extreme engineering project in the history of the world will be performed OFF the world... on Mars.
世界历史上最艰巨的工程项目将在地球之外的火星上进行。
The most extreme engineering project in the history of the world will be performed OFF the world... on Mars.
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