废弃泡沫塑料的处理已经成为环境污染治理的重要问题。

Treatment of waste plastics has become an important issue of environmental pollution control.

youdao

废弃泡沫塑料的处理已经成为环境污染治理的重要问题。

Treatment of waste plastics has become an important issue of environmental pollution control.

youdao