slum
A. a piece of ground going up or down
B. a city area of dirty, poor living condition
C. an area of soft wet land
D. the entire tract of country drained by a river
perception
A. understanding
B. conception
C. entrance
D. Percentage
rebuff
A. to puff
B. to oppose
C. to refuse
D. to reprove
debunk
A. to retell
B. to expose
C. to impress
D. to describe
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