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A: Travelers worry about airplane air because it's often dry, because the environment is usually cramped, and because it seems that the germs released by passengers' coughs and sneezes have nowhere to go. |
中文意思: 答:旅客会担心机舱内的空气质量,因为那里不仅干燥、空间有限,而且人们咳嗽、打喷嚏时跑出来的细菌似乎也无处可去。 |
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