adj.较高的；上面的；上部的

n.鞋帮；上铺

n.兴奋剂；令人兴奋的经历

The upper valley is also noted for its valuable woodland and birds. 在较高的山谷也有不少珍贵树林和雀鸟。

He locked his diary in the upper drawer. 他把日记锁在上层抽屉里。

She lived in one of the upper rooms. 她住在上面的房间之一。

The upper side of a leaf is known as the adaxial surface. 叶子的上部被称为近轴表面。

It also features a laser etched graphic over the upper. 它也以在鞋帮的激光被铭刻的图表为特色。

Do you prefer an upper or a lower berth? 你想要上铺还是下铺?

adj.上层阶级的；上层社会的

n.上层社会

n.上击；上钩拳

v.上击

上界

adj.最高的；至上的

adv.向着或在最高或最重要位置

nickname for stimulants 刺激物的别称

n. 高年级学生