This knife is made of high-quality steel.

这把刀是用优质钢制成的。

This region produces high-quality wine.

这个地区出产优质的葡萄酒。

This scarf is made of high-quality wool.

这条围巾是用优质毛线制成的。

This belt is made of high-quality leather.

这条皮带是用优质皮革制成的。

They specialize in breeding high-quality dairy cows.

他们专门养殖优质的奶牛。

This shop specializes in high-quality Pu'er tea.

这家店专门卖优质的普洱茶。

This jacket is made of high-quality cowhide.

这件夹克是用优质牛皮制成的。

These blankets are made of high-quality wool.

这些毯子是用优质羊毛制成的。

This tableware is made of high-quality materials.

这些餐具是由优质材料制成的。

This leather bag is made of high-quality leather.

这个皮包是用优质皮革制成的。