For a person to truly quit smoking, at least two key issues must be addressed: one is to reduce the chance of exposure to tobacco, and the other is the support of the family. If the above two aspects cannot be resolved, then even if the individual has the strongest willpower, It is impossible to quit smoking. Can't launch from this? ['as long as you reduce your exposure to tobacco, have the support of your family, and have strong willpower, you will be able to quit smoking successfully.', 'quit smoking only if you reduce your exposure to tobacco.', "unless you reduce your exposure to tobacco and get support from your family, you won't be able to quit successfully.", 'a strong-willed person who quit smoking must have the support of his family.']