As a major health risk hepatitis is second only to tobacco.

肝炎仅次于烟草是主要的健康隐患之一。

《柯林斯英汉双解大词典》

This year's Day promotes 100% smoke-free environments as the only effective way to protect people everywhere from exposure to second-hand tobacco smoke.

今年的无烟日提倡100%无烟环境，作为防止世界各地人们接触二手烟草烟雾的唯一有效途径。

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Creating 100% smoke-free environments is the only way to protect people from the harmful effects of second-hand tobacco smoke.

创造100%的无烟环境，是保护人们免受二手烟草烟雾有害影响的唯一途径。

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