upper是什么意思

adj.

1.[only before noun]上面的，上层的

2.上部的，靠上部的

3.内陆的，高地的，向北部的

n.[usually pl.]

1.鞋帮，靴面

2.兴奋剂

英语解释

the higher of two berths

superior in rank or accomplishment

the topmost one of two

higher in place or position

a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression

piece of leather or synthetic material that forms the part of a shoe or boot above the sole that encases the foot