1.It's difficult to find high-quality apples in Washington or fresh oranges in Florida.
(hint:transportation costs.... 不过我查了 华盛顿是盛产苹果而佛罗里达盛产桔子)
2. People with significant baby-sitting expenses are more likely to have
meals out at expensive (rather than cheap) restaurants than are those
without such expenses.
3. Individuals are more likely to search for bargains for expensive items
than for cheap ones.


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