永不降解化学品 – 第二级

2026年3月13日 07:00永久性化学物质PFAS是人造物质,存在于许多日常用品中。它们存在于不粘锅、防水衣物、快餐包装纸、化妆品,甚至食物和水中。这些化学物质在自然环境中无法分解,因此会长期残留。

部分研究指出,PFAS可能引发生育能力下降或某些癌症等健康问题。法规认为微量使用是安全的,但科学家仍在研究其对人类和自然的长期影响。通过阅读标签并谨慎选择购买和食用物品,可减少接触PFAS的机会。了解这些化学物质有助于保障人们的安全与健康。

您可在三级课程板块观看原始视频。

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LEARN 3000 WORDS with CHINESE IN LEVELS

Chinese in Levels is designed to teach you 3000 words in Chinese. Please follow the instructions
below.

How to improve your Chinese with Chinese in Levels: 

Reading

  1. Read two news articles every day.
  2. Read the news articles from the day before and check if you remember all new words.

Listening

  1. Listen to the news from today and read the text at the same time.
  2. Listen to the news from today without reading the text.

Writing

  1. Answer the question under today’s news and write the answer in the comments.