有机农业是一种相对而言尚未开发的资源，可以用来养活地球上的人口，尤其是在应对气候变化和其他全球性挑战的情况下。
Organic agriculture is a relatively untapped resource for feeding the Earth's population, especially in the face of climate change and other global challenges.
周三发表在《神经病学》杂志上的一项研究表明，需要大量分析思维、计划和其他管理技能的挑战性工作可能有助于你年纪渐长时保持大脑敏锐。
Challenging work that requires lots of analytical thinking, planning and other managerial skills might help your brain stay sharp as you age, a study published on Wednesday in the journal Neurology suggests.
50岁的景海鹏是这项任务的指挥官，他告诉记者：“虽然这项工作具有挑战性、风险性和危险性，但我没有其他更愿意做的事了。”
"Although the job is challenging, risky and dangerous, there is nothing more I would rather do," Jing Haipeng, 50, who is commander of this mission, told reporters.
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