煤烟 (méi yān) — smoke from burning coal; soot

定義

例文

• 工厂排出的煤烟污染了空气。
  Gōng chǎng pái chū de méi yān wū rǎn le kōng qì.
  The smoke from the factory's coal burning polluted the air.
• 厨房的墙上积了一层煤烟。
  Chú fáng de qiáng shàng jī le yī céng méi yān.
  A layer of soot accumulated on the kitchen wall.
• 冬天烧煤取暖，煤烟很大。
  Dōng tiān shāo méi qǔ nuǎn, méi yān hěn dà.
  In winter, burning coal for heat produces a lot of smoke.