not less than; a minimum of at least they bought something.
case
a situation
Detectives were finding this case difficult to solve.
cheap
goods or services that are cheap cost less money than usual or than you expected
Food is so cheap in Vietnam and so delicious!
cost
to cause someone to lose or destroy something valuable
My job pays very well but it costs me time with my family.
crowded
having many people in a small area
The theater was so crowded that he couldn't get a seat and had to sit on the floor.
freedom
the right to make your own choices or decisions
When you turn 18, you have the freedom to make your own choices.
liter
a metric unit of volume equal to approximately 1.056 liquid quarts
The soldiers assigned to the desert are required to drink at least 8 liters of water a day.
on top of
in addition to
Robert has to wash the dishes on top of mopping the floor.
subway
a train that runs underneath a city
The subways in Tokyo are always very crowded.
tax
money paid to the government taxes are supposed to be used to pay for a city's public works.
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