The blood tests are important, because many people underestimate their exposure to secondhand smoke, said Terry Pechacek, associate director for science in the CDC's Office on Smoking and Health.
因为很多人低估了二手烟的危害,所以验血很重要,CDC吸烟与健康办公室自然科学合作负责人TerryPechacek说。
The blood tests are important, because many people underestimate their exposure to secondhand smoke, said Terry Pechacek, associate director for science in the CDC's Office on Smoking and Health.
因为很多人低估了二手烟的危害,所以验血很重要,CDC吸烟与健康办公室自然科学合作负责人TerryPechacek说。
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