If you're keen to earn a bit of extra cash while potentially saving this planet from alien infection, NASA has an opening for you.

　　如果你热衷于赚点外快，同时有保护地球免受外星生物感染的潜能，那美国航空航天局可以为你提供一份工作。

　　The US space agency is looking to hire a Planetary Protection Officer who will both protect our planet from the Martians and make sure that humans venturing into space do not contaminate other worlds.

　　美国宇航局希望聘请一名行星保护官，他既要保护我们的行星免受火星生物的侵袭，又要确保人类进入太空时不会污染其他世界。

　　The job requires "frequent travel" but it does come with a salary of $187,000 (£141,000) a year with benefits, which isn't bad.

　　这份工作需要“经常出差”，但其薪资还不错，算上福利，年收入可达187,000美元(141000英镑)。

　　"Planetary protection is concerned with the avoidance of organic-constituent and biological contamination in human and robotic space exploration," reads the job description.

　　“行星保护涉及的是在人类和机器人进行太空探索的时候免受有机组分和生物性侵染，”该工作简介上写道。

　　“Nasa maintains policies for planetary protection applicable to all space flight missions that may intentionally or unintentionally carry Earth organisms and organic constituents to the planets or other solar system bodies, and any mission employing spacecraft, which are intended to return to Earth with samples from extraterrestrial targets of exploration.”

　　“对于所有有意或无意中携带地球生物或有机成分到行星或太阳系其他星球上的太空航行任务，或是任何携带地球外探索目标的样品返回地球的航天任务，美国航空航天局会坚守那些适用于上述所有航天任务的行星保护政策。”

　　The role will probably require involvement in NASA's upcoming missions, including a planned trip to Jupiter's moon Europa in the 2020s.

　　这份工作可能还需要参与美国航空航天局即将执行的任务，其中包括在2020年去木星的卫星欧罗巴的一次计划中的行程。

　　If you're interested in applying, NASA says you need at least one year's experience as a civilian government employee and an advanced degree in physical science, engineering or mathematics.

　　美国航空航天局表示，如果你对这份工作感兴趣，你至少需要有一年在政府部门担任文职工作的经验，并且要有自然科学、工程学或数学领域的高学历。

　　The space agency says the role requires “demonstrated skills in diplomacy that resulted in win-win solutions during extremely difficult and complex multilateral discussions”.

　　宇航局称，这个角色需要“善于处理人际关系，可以在特别困难复杂的多边商讨中找到一种双赢的解决方案。”

　　You also need to have "advanced knowledge" of planetary protection, which probably means more than just having read The Andromeda Strain whilst on holiday.

　　你还需要了解关于行星保护的“先进知识”，这可能意味着在你休假的时候，你要做的不仅仅是读完《安德罗美达菌株》这本书。