英语语法分析

I think I've seen photos of rectangular concert halls.

我想我看过长方形音乐厅的照片。

Older concert halls from the 1800s are generally rectangular.

19世纪的旧音乐厅一般都是长方形的。

The houses are all rectangular, one storey, made of sun-dried bricks.

这些房子都是长方形的，一层高，是用晒干的砖砌成的。