His "fast and dirty" analysis of Mexico's swine flu outbreak suggests that the H1N1 virus is about as dangerous as the virus behind a 1957 pandemic that killed 2 million people worldwide.
他对墨西哥猪流感爆发“迅速并且肮脏”的分析显示H1N1病毒与1957年爆发的疫情病毒一样危险，当时的感冒病毒致使全球两百万人丧命。
A white dress gets dirty very fast.
白色的衣服脏得快。
"You don't have to stay in that dirty-little dirty-little dirty-little yard, " said the goose, who talked rather fast.
你可以不用留在那个又脏又小，又脏又小，又脏又小的地方。
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