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人们不用花费很大力气就能发现抽烟和癌症之间的直接联系。
One doesn't have to look far to realize the direct correlation between smoking and cancer .
youdao
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人们不用花费很大力气就能发现抽烟和癌症之间的直接联系。
One doesn't have to look far to realize the direct correlation between smoking and cancer .
youdao