Translation of "Upper" in Chinese

Stiff upper lip!

坚持到底！

The upper reaches of the river are very beautiful.

河的上游很美。

He thought he had the upper hand, but I turned the tables on him.

他觉得自己占了上风，但我反过来扭转了局面。

Throughout the five years of painful cancer treatments, he managed to keep a stiff upper lip.

这五年痛苦的癌症治疗他终于坚持下来了。

His upper body looks like it has the shape of an inverted triangle; standing there, he seems extremely handsome!

他上身长得呈倒三角形，站在那里看上去特帅！