Translation of "Originally" in Chinese

I'm originally from China.

我来自中国

Originally, you were very stubborn.

原来你很倔。

The room originally had no furniture.

本来这间房间里没有家具。

This poem was originally written in French.

這首詩本來是用法文寫的。

Originally, I knew nothing about it at all!

我本来什么也不知道啊！

I find this problem easier than I originally thought.

我发现问题比我原以为的容易。

- I find the problem easier than I originally believed it to be.
- I find this problem easier than I originally thought.

我发现问题比我原以为的容易。

I find the problem easier than I originally believed it to be.

我发现问题比我原以为的容易。

The term "hutong", originally meaning "water well", came from the Mongolian language about 700 years ago.

“胡同”这个词，本意是“水井”，来源于700年前的蒙古语。