upper

名词 upper:

1. the higher of two berths
   同义词：upper berth
2. piece of leather or synthetic material that forms the part of a shoe or boot above the sole that encases the foot
3. 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:

1. higher in place or position
2. the topmost one of two
3. superior in rank or accomplishment

1. The first-stage vehicle is used to launch the rocket and is then jettisoned in the upper atmosphere.
   第一级运载火箭是用来发射火箭的，进入高层大气後即抛掉。
2. In Britain the upper Chamber is the House of Lords, and the lower the House of Commons.
   英国上院即贵族院，下院即众议院。
3. Tears are secreted by an organ under the upper eyelid.
   眼泪由上眼睑下面的器官分泌。
4. He locked his diary in the upper drawer.
   他把日记锁在上层抽屉里。
5. Passengers may smoke only on the upper deck of the bus.
   乘客只可以在公共汽车的上层吸烟。
6. My hometown is in the upper reaches of the river.
   我的家乡在这条河的上游地区。