n. 丘陵地, 丘陵草原

n soft fine feathers

n (American football) a complete play to advance the football

n English physician who first described Down's syndrome (1828-1896)

n (usually plural) a rolling treeless highland with little soil

n fine soft dense hair (as the fine short hair of cattle or deer or the wool of sheep or the undercoat of certain dogs)

v drink down entirely

v eat immoderately

v bring down or defeat (an opponent)

v shoot at and force to come down

v cause to come or go down

v improve or perfect by pruning or polishing