常見例句

雙語(yǔ)例句

• "White pollution" is a world-spread question. Developing degradable plastic is one of the most important measures to control "White pollution".
  前言： “白色污染”是一個(gè)全球性問(wèn)題，發(fā)展可降解塑料是解決這一問(wèn)題的有效方法之一。
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