Studies show that raising tobacco taxes by a tenth may cause a 4% drop in consumption in rich countries and an 8% drop in poor ones, with tax revenue rising despite lower sales.

研究表明，在发达国家，烟草税提高10%可以使烟草消费降低4%，在经济过后国家则降低8%，销量虽然减少，但是总税收仍然增加。

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If you are adding a "Drop shadow" layer effect, and you have the layer Style dialog open to the Drop shadow Settings, you can move the shadow around by clicking and dragging in the image.

如果你下大添加一个“投影”的图层效果，并且你已经打开了图层样式的对话框并进行了投影设置，你可以通过点击并拖动图形的阴影来移动图形的投影。

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Rain drop by drop to play in the heart, tears drop by drop on the face, this is the rhythm of the separation.

雨水一滴一滴打在心上，泪水一滴一滴打在脸上，这是分离的节奏么。

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Just last week,the Commerce Department reported an unexpected drop in December in the number of housing starts by builders.

VOA: special.2011.01.24

He points to a big drop in the number of planned job cuts announced by employers over the past six months.

VOA: special.2010.07.02

Another doctor believes that Ernest Shackletons vision was caused by a drop in blood sugar.

VOA: special.2010.02.24

To be sure, Thursday's drop was in part driven by the major drop-off seen in the rest of the market, but shares had been trading down significantly throughout the day.

FORBES: Earnings Season

The statistics may show a drop in crime across the country in the past five years, including a drop in murders by gun-wielding teenagers, but the fact is that each year more than 2, 000 Americans aged 14-17 use a gun to kill someone.

ECONOMIST: The lesson nobody learns

We see a steep drop off in revenues and units near term, punctuated by a drop in subscriber adds, and an OS refresh that is largely ignored by carriers and consumers alike, driving RIM into a forced sale in 2013.

FORBES: Why RIM Won't Be Bought: There's Not Much There There