【正确答案】No Smoking
(Student's sample) As we all know that cigarette smoking not only harms to the smoker's health but also threats to public health. It causes air pollution. In order to stop or reduce smoking, many measures are taken. Public places must put many no-smoking signs. Bad results of smoking are written in newspapers and even broadcast on TV to tell smokers. In our country the date April 7 is "Stop-smoking Day".
(Improved sample) It is known to all that cigarette smoking is not only harmful to the smoker's health but also a threat to public health as it is one of the causes of air pollution. In order to stop or reduce smoking, many measures have been taken. For example, many no-smoking signs are put in public places; bad effects of smoking are printed in newspapers and even shown on TV to warn smokers. In our country April 7 is set as "Nonsmoking Day".