From the world of international diplomacy, we turn our attention to the world of common materials. One of the most common materials is plastic.
现在我们从国际谈判的世界转向常见材料的世界。塑料是最常见的材料之一。
From the world of international diplomacy, we turn our attention to the world of common materials. One of the most common materials is plastic.
现在我们从国际谈判的世界转向常见材料的世界。塑料是最常见的材料之一。
应用推荐