But many theatres welcome individual volunteers, too, so if you don't want to cough up a membership fee for a short visit, contact the theatres to try to arrange ushering opportunities on your own.

如果你无意为一个短期旅行来支付这样一笔会费的话，其实也有相当一部分剧院欢迎个人志愿者。你可以直接和剧院联系尝试取得这样的带座机会。

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Hundreds of Gulf residents have begun complaining of sore throats, dizziness, a constant cough, and even short-term memory loss.

成百上千的墨西哥湾居民开始抱怨嗓子疼，头晕，持续不断的咳嗽，甚至失忆。

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Caused by the bacterium Bordetella pertussis, it initially resembles a cold with a short dry cough.

致病菌为百日咳博尔德氏杆菌，潜伏期一周，类似普通感冒，伴有短促的干咳。

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Freed believes that the lingering cloud of dust -- caused by the towers' collapse and the digging out of ground zero -- caused some of her long- and short-term medical problems, such as her "WTC cough" and other respiratory issues.

CNN: The story