美国科学60秒 SSS 2013-04-17
时间：2013-07-23 07:28:29
搜索关注在线英语听力室公众号：tingroom，领取免费英语资料大礼包。
（单词翻译）
People with asthma1 crog constructive2 pollenary disease and other breathing disorders3 need fast relief with airway4 tighten-up.unfortunately the most comonly used medication has nocious side effect,but scientists recently discoveryed that a bitter of taste can be more effective treatment, and now they know why,the work is published on Plus Biology.
When an asthma attack hit ,the air we shrink and makes breathing difficult ,to keep air flowing ,the suffer must take medication to relax passager's muscle open and backup,but a couple year ago,research discovered airway contain bitter taste acceptors lets ones on the tongue,after exposure to a bitter substance, the acceptors can expand the airway more quickly and more effectively than the commonly used treatment.
Researcher examined airway tissue to learn why the bitterness make the muscles relax,during an asthma attack,calsin flows into the selfof the airway and contribute to muscle constraction.
but bitter substances block the channel that allow the calcement desell ,that is the opposite of bitter bill.
分享到：
Error Warning!
出错了
Error page: /?aid=219788&mid=3
Error infos: Got error 28 from storage engine
Error sql: select `l`.`tag`,`l`.`index`,`l`.`level_id`,`b`.`id`,`b`.`word`,`b`.`spell`,`b`.`explain`,`b`.`sentence`,`b`.`src` from `new_wordtaglist` `l` left join `new_word_base` `b` on `l`.`tag`=`b`.`word` where `l`.`arc_id`='219788' and `l`.`level_id`>='' group by `b`.`word` order by `l`.`index` asc
