Both clay and sandstone are unstable rock formations.

黏土和砂岩都是不坚固的岩石构造。

《柯林斯英汉双解大词典》

A patina of earthen clay or sandstone helps fit your landscape into its native surroundings.

一个土黏土或砂岩帕蒂娜有助于适应环境的原生景观。

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Red sandstone, distributed along Xiangtan-Leiyang Freeway, rich in clay minerals, possesses two typical structures: muddy structure and granular structure.

分布在湘耒高速公路沿线的红砂岩具有两种基本结构，即泥状结构和粒状碎屑结构，并富含粘土矿物。

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Women of the Bakgatla ba Kgafela community of Botswana practice earthenware pottery-making skills using clay soil, weathered sandstone and other materials to make pots of different forms, designs and styles that relate to the traditional rituals and beliefs of the community.

UNESCO: MEDIA SERVICES