禁止吸烟在英语里怎么说

"No smoking" is the most common way to express that smoking is prohibited in Engpsh. This phrase can be used in a variety of contexts, such as on signs, in pubpc areas, or in private estabpshments. You can also say "smoking is not allowed" or "smoking is prohibited" to convey the same meaning. In addition, you can use the phrase "smoking area" to indicate where smoking is permitted. For example, you might see a sign that says "No smoking except in designated smoking area."