有什么危害没有？是不是安全的，造成大部分烟民对电子烟持怀疑态度。

Is not safe, resulting in most of the electronic cigarette smokers skeptical.

youdao

文中也讨论烟剂的安全性问题。

Moreover, the security ofthe smoke agent has been studied.

youdao

文中也讨论烟剂的安全性问题。

Moreover, the security ofthe smoke agent has been studied.

youdao