煤并不一定都是黑的。
煤並不一定都是黑的。
Coal is not always black.
Meaning
coal
CL:塊|块[kuai4]
Examples
煤并不一定都是黑的。
煤並不一定都是黑的。
Coal is not always black.
二氧化碳是燃燒煤、石油或天然氣這樣的燃料時會產生的氣體。
Carbon dioxide is a gas that is produced every time a fuel such as coal, oil, or natural gas is burned.
煤和天然氣是天然燃料。
Coal and natural gas are natural fuels.
原材料的价格如石油或者煤的不停地上升。
原材料的價格如石油或者煤的不停地上升。
The prices of raw materials such as oil or coal continue to rise.
Tom不知道碳和煤的差別。
Tom does not know the difference between charcoal and carbon.
Characters
Stroke practice
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