Translation of "Halfway" in Chinese

Don't give up halfway.

不要半途而廢。

I'm halfway through my sandwich.

我吃了一半三明治了。

- I am halfway through this detective story.
- I'm halfway through this detective story.

這本偵探小說我才看到一半。

We went halfway up the mountain.

我們爬到了半山腰。