楼面既可以用耐火混凝土建造，也可以用木料建造。

These may be constructed either in fire resisting materials, such as concrete, or in timber.

youdao

楼面既可以用耐火混凝土建造，也可以用木料建造。

These may be constructed either in fire resisting materials, such as concrete, or in timber.

youdao