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Can poetry fight air pollution?
仅凭诗歌可以治理空气污染问题吗？
Turns out it can—with the help of nanotechnology.
答案当然是可以，但要纳米技术帮点忙。
Tony Ryan is a polymer chemist at the University of Sheffield.
托尼瑞安是英国谢菲尔德大学的高分子化学家。
He works with tiny particles of titanium dioxide, which can use sunlight to suck up smog-forming pollution and purify the air.
他目前研究二氧化钛微粒，而这种物质可以利用阳光吸收污染物，达到净化空气的目的。
To demonstrate the effect, Ryan attached a poster 20 meters tall and 10 meters wide to the side of a building in Sheffield on May 14th.
为了演示治理污染的效果，瑞安于5月14日在谢菲尔德大学一栋建筑物的外墙上安置了一块高20米宽10米的巨型广告牌。
The poster is coated with titanium dioxide and can consume the nitrogen oxide exhaust of about 20 cars per day.
这面广告牌的表面涂有二氧化钛，可以吸收相当于20辆汽车一天排放的一氧化氮量。
He argues that every billboard could be similarly treated to suck up pollution at an extra cost of just a few hundred dollars.
他强调任何一块普通广告牌都可以辅以类似的功能，而且只比一般广告牌贵几百美元。
The Sheffield poster comments on its own function.
谢菲尔德在广告牌上为自己作了总结。
Written on it is a new work by poet Simon Armitage entitled "In Praise of Air."
他所引用的是西蒙阿米里奇的作品《空气颂》中的一段。
"on days when thoughts are fuddled with smog/or civilization crosses the street/with a white handkerchief over its mouth.
“脑中满是雾霾/白手帕掩嘴穿过这孕育人类文明的街市。
and cars blow kisses to our lips from theirs/I turn the key, throw back the lid, breathe deep./My first word, everyone's first word, was air."
嘴中无奈接到汽车排气管热情的飞吻/我旋转了钥匙，旋即盖上盖子，之后深深呼吸/之后我和所有人所喊的第一个字是空气。
