"I don't want to spend more than twenty dollars for a backpack." Consumer spending is seventy percent of the economic activity in the United States.

VOA: special.2009.08.21

So we put one item in the backpack 9 and we've got a value of 9.

所以我们在背包里放一件物品,而它的价值是。

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So I think I'm going to buy a new backpack.

所以我在考虑换一个新的双肩包。

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I can see a wine bottle in your backpack.

我在你背包里看到一个葡萄酒瓶。

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I need a new backpack for my vacation.

我需要为我的假期准备一个新的双肩包。

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