他举起了打火机，这样它就碰到了香烟头。
They may be merely additions to existing product lines (the first cigarette with a filter tip, for instance) or improvements to existing products (a new whiter-than-white washing powder).它们也可能仅仅是在现有的产品上增加了一些东西(比如推出带有过滤嘴的香烟)，或者是对现有的产品做出改良(比如一种能把衣服洗的更白的洗衣粉)。
For example, some cigarette manufacturers would like to see greater production of tip grades for use in blending while others would like to buy less lower-stalk tobacco.例如，一些卷烟制造商可能喜欢在卷烟中用较多的顶叶等级烟叶，而另一些则可能喜欢买少量的下部叶。
