上shàng

Introduction:

Definition:top; superior, highest; go up, send up

Text：

上山[shàng shān] climb mountain

上班[shàng bān] go to work

上课[shàng kè] have a class

上午[shàng wǔ] morning

Shàng shān róng yì xià shān nán。

上 山 容 易 下 山 难。

It's easy to go up a hill but hard to go down.