1·Well, parenthetically, I was trying to quit smoking at the time.
嗯，插一句，我那时正尝试戒烟。
—— 《柯林斯英汉双解大词典》
2·My uncle hasn't been able to quit smoking.
我的叔叔没能成功戒烟。
3·Quit smoking and arrange for any help you may need at home.
戒烟并安排好你在家里可能需要的任何帮助。
4·Let's make a specific example: how could you turn the negative worded goal of "Quit smoking" into a positive one?
让我们举一个特例：如果把“戒烟”这个词里的消极语气变成积极的呢？
5·He has quit smoking for more than ten years.
他戒烟已经十多年了。