upper
名词 upper:
the higher of two berths
同义词:upper berth
piece of leather or synthetic material that forms the part of a shoe or boot above the sole that encases the foot
a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression
同义词:amphetamine, pep pill, speed
形容词 upper:
higher in place or position
the topmost one of two
superior in rank or accomplishment