每日背誦一期-21

Although traveling dust storms are nothing new, the dust now often contains chemical or metallic substances that contribute to respiratory illnesses and damage the environment. At present, a group of researchers in Asia is studying aerosol particles and their effects on the environment—and they have plenty of dust to work with.

雖然移動的沙塵暴沒什麼稀奇，但現在那些沙塵通常含有引起呼吸道疾病和破壞環境的化學或金屬物質。現在亞洲有一批研究人員正在研究懸浮顆粒及其對環境的影響──他們要研究的沙塵可多著呢！

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