The counterfeiters simply falsify the delivery papers by adding an extra zero to the quantity supplied, then they make up the difference by adding their own boxes to the order.

造假者只要在送货文件上作假，在供货数量之后额外添加一个零，然后在订购货物中加上他们自己的药盒，从而补足数量。

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You see, there is a difference between quantity, and quality.

你知道数量与质量是不同的。

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The main difference between success and failure is the degree to which poor people themselves are involved in determining the quality and the quantity of the services which they receive.

成败的主要区别在于贫困人口在决定他们所获得的服务的质量和数量方面的参与程度。

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The difference is merely whether the same quantity of waste heat energy is thrown away at the source or in the vehicle.

FORBES: The Heretic: Electric Cars Should Be Called Coal Cars

Now, the difference with the Valdez -- the Valdez was a knowable quantity of oil because it was a ship.

WHITEHOUSE: Press Briefing on Oil Spill in Gulf of Mexico

The difference between revivals and originals this season is unquestionably one of quality not quantity.

ECONOMIST: Retreading the boards