好，最常见和最昂贵的是沥青浸渍纤维板。

Well, the most common and least expensive is made of asphalt-soaked fiberboard.

youdao

好，最常见和最昂贵的是沥青浸渍纤维板。

Well, the most common and least expensive is made of asphalt-soaked fiberboard.

youdao