What do you need your own computer for? You can use ours.

　　你干嗎還要自己買電腦？你可以用我們的。

　　It is interesting to compare their situation and ours.

　　把他們的狀況與我們的相比很有意思。

　　It is possible to draw a parallel between their experience and ours.

　　在他們的經歷和我們的經歷之間找到相似點是可能的。

　　A hedge forms the division between their land and ours.

　　他們的'土地與我們的土地之間以一道樹籬隔開。

　　When you look at their new system, ours seems very old-fashioned by contrast.

　　看一看他們的新系統，就顯得我們的系統陳舊過時了。