加利佛尼亚大学干细胞研究中心主管，他的实验室正在进行此项研究。他说：“正因为如此，许多人认为电子烟是安全的，完全可以替代传统香烟。”
"As a result, some people believe that e-cigarettes are a safe substitute for conventional cigarettes," said Prue Talbot, the director of UC Riverside's Stem Cell Center, whose lab led the research.
什么是电子香烟？它们比传统香烟安全吗？
What are electronic cigarettes? Are they safer than conventional cigarettes?
制造商声称电子香烟是一种安全的香烟替代品。
Manufacturers claim that electronic cigarettes are a safe alternative to conventional cigarettes.
如果烟草商在广告宣称自己的香烟是安全产品，那实际上就是暗示香烟是不安全的，而这可能降低消费。
If a cigarette producer advertises its cigarettes as "safer," it is implying that cigarettes are unsafe, and this could reduce consumption.
没有所谓的 “低焦油”香烟，也没有所谓的安全吸烟方式。
There is no safe 'low tar' cigarette and no safe level of smoking。
世界卫生组织(WHO)曾在去年提醒人们不要吸电子香烟，称没有证据证明其安全性，以及帮助戒烟的功用。
Last year the World Health Organization (WHO) warned against using electronic cigarettes, saying there was no evidence to prove they were safe or helped smokers break the habit.
电子香烟——安全的吸烟方式？
在一项大型调查中，报告使用了所谓的电子烟的人，80%认为该产品比传统香烟更安全。
Some 80% of individuals who reported using so-called electronic cigarettes in a large survey said the products are safer than traditional cigarettes.
如果烟草商在广告宣称自己的香烟是安全产品，那实际上就是暗示香烟是不安全的，而这可能降低消费。
"If a cigarette producer advertises its cigarettes as" safer, "it is implying that cigarettes are unsafe, and this could reduce consumption."
没有所谓的“低焦油”香烟，也没有所谓的安全吸烟方式。
There is no safe 'low tar' cigarette and no safe level of smoking.
他灵机一动赶紧跑出去把雪茄、香烟、甚至那盒安全火柴锁好。
Inspired, he rushed out and locked up his cigars, his cigarettes, and even his box of safety matches.
一般认为电子香烟要远比烟草安全，但一位国会议员说电子香烟就是“一种糖果味的成瘾物”。
Though they are generally deemed much safer, one congressman described e-cigarettes as "a candy-flavoured addiction".
“没有安全的香烟，无论是所谓'轻'超轻'或其他任何名义，”卡莫纳博士说。
"There is no safe cigarette, whether it is called 'light,' ultra-light, 'or any other name," Dr. Carmona said.
请熄灭香烟，把安全带系上。
他补充道，香烟同一个人为了生存、稳定、安全而奋斗有很大的关系。
He adds that cigarettes are involved in a man's struggle for survival, stability, and security.
最近一项研究表明，电子烟比传统香烟更安全。研究表明了电子烟可以大大降低烟瘾造成的疾病及死亡率。
A recent report showed that electronic cigarettes are far safer than actual cigarettes, and show promise in the fight against tobacco-related diseases and death.
这证明了可以通过尿样来判断潜在更安全的香烟是否让吸烟者暴露在较低有害化学物质中。
This is proof of the principle that it is possible to work out from urine samples whether a potentially safer cigarette exposes smokers to lower levels of damaging chemicals.
这证明了可以通过尿样来判断潜在更安全的香烟是否让吸烟者暴露在较低有害化学物质中。
This is proof of the principle that it is possible to work out from urine samples whether a potentially safer cigarette exposes smokers to lower levels of damaging chemicals.
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