brick

The exterior of the library is covered in traditional red bricks and white mortar.

(Chinese) 图书馆的外墙覆盖着传统的红砖和白色灰浆。

Masons spent the morning laying bricks to build a low wall around the garden.

(Chinese) 泥瓦匠花了一个上午砌砖，在花园周围筑起了一道矮墙。