As we all know, passive smoking is nothing less serious than "active" smoking.

据我们所知，被动的吸烟与主动吸烟的危险同样严重。

youdao

As we all know, passive smoking is nothing less serious than "active" smoking.

据我们所知，被动的吸烟与主动吸烟的危险同样严重。

youdao