Translation

• coal
• CL:塊|块[kuai4]

Synonyms

• 乌金, 煤炭

Examples

• 煤并不一定都是黑的。
  Coal is not always black.
• 二氧化碳是一种每次如煤、石油或天然气这样的燃料燃烧时都会产生的气
  Carbon dioxide is a gas that is produced every time a fuel such as coal, oil, or natural gas is burned.