求翻译：在世界无烟日那天，我们学校对我校学生吸烟情况进行了一次调查，结果又２％经常吸，７％有时吸，９１％不吸烟，对此我校对吸烟同学作演讲，跟他们脚镣，天天吸烟的危害，要他们戒掉烟，不再抽烟了是什么意思？

On world no tobacco day, we school our school students conducted a survey of smoking, and 2% often sucks, sometimes 7%, 91% do not smoke, I proofread smoking students to give a speech about it, with their leg, smoking harms every day, asking them to quit smoking, don't smoke