upper layer的用法和样例：
例句
- The plates on the upper shelf were beyond my reach.
上层架子上的盘子我伸手拿不到。 - He locked his diary in the upper drawer.
他把日记锁在上层抽屉里。
upper layer的相关资料：
临近单词
upper nut
upper
upper semicontinuous function
upper eyelid skin flaccidness
upper slide-shuttering form
upper opening of esopho-gus
Upper Respiratory Tract Flora
upper and lower motor lesions
Upper and Lower Approximation
upper urinary tract infection
Upper reaches of Yellow River
Upper approximation reasoning
