21.   When the oil market collapsed this winter, OPEC and other producers got hammered and consumers enjoyed unusually cheap gasoline prices.

a. + gasoline >>共 324
reformulated 7.78%
higher 6.67%
unleaded 4.36%
high 3.93%
leaded 3.76%
domestic 2.65%
rising 2.40%
cleaner 2.40%
federal 2.40%
cheap 1.80%
cheap + n. >>共 912
labor 6.89%
import 5.17%
price 2.07%
goods 1.63%
hotel 1.53%
seat 1.47%
loan 1.44%
way 1.42%
thrill 1.42%
oil 1.39%
gasoline 0.57%
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