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(guò)時(shí)了。

　　Their house is very similar to ours, but ours is bigger.

　　他們的房子和我們的十分相像，但我們的要大些。

　　Our dresses were the same except mine was red.

　　我們的連衣裙是一樣的，只是我的那件是紅色。

　　Her dress is almost identical to mine.

　　她的連衣裙和我的幾乎一模一樣。

　　The eyes of some fish have a greater sensitivity to light than ours do.

　　有些魚(yú)的眼睛對光比我們敏感。