safe exposure level 中文意思是什麼
safe exposure level
解釋
安全曝光水平-
The surgeon general says there is no safe level of exposure to secondhand smoke
外科醫生說,吸二手煙並沒有安全度可言。 -
Secondhand smoke is now classified as a toxic air pollutant, along with diesel fumes, asbestos, and industrial pollution … unlike the others, tobacco smoke has no safe level of exposure
二手煙現在被劃分為有毒的空氣污染,連同柴油、石棉、工業污染等…和別的不同的是,煙草的煙沒有一點安全的元素。
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