We need some costly materials.

我们需要某些价值昂贵的材料。

youdao

To trial-produce this product, we need some costly materials.

为试制这种产品，我们需要某些价值昂贵的材料。

youdao

They would usually duplicate the gown patterns for the royal weddings implementing less costly materials.

正式他们通常会复制皇室婚礼礼服模式实施低成本材料。

youdao

The significance and high status of the manuscript can be seen by the gorgeous and costly materials used in its execution.

UNESCO: Memory of the World

So automakers are turning to lightweight but costly materials like aluminum, magnesium, carbon fiber and new kinds of steel to help reach the government's targets.

FORBES: Magazine Article

To his surprise, they wanted him to go even further, requesting more costly sustainable materials.

WSJ: A Bicyclists' House Built for Two