They found that in unventilated spaces levels can build up and, over time, cause health problems such as allergies and asthma.
研究
,
不透风的空间里,时间长了,
影响健康,出现过敏、哮喘等
。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
Fire! shouted the boys, for they were persuaded he could not do it without leave from a civil officer; and a young fellow spoke out, " We will knock him down for snapping, " while they whistled through their fingers and huzzaed.
“开枪!”那群少年连声高叫,事先有人向他们透风,假若市政官员在
的话,英国哨兵就不敢开枪。突然,一位年轻人叫道,“把他揍倒,折断他的枪,”四下响起一片呼哨和连声哄叫。